Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270113012134/ky3029sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270113012134/ky3029Isup2.hkl | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270113012134/ky3029IIsup3.hkl |
CCDC references: 956982; 956983
For related literature, see: Chakrabary et al. (2011); Cooper et al. (2002); Cui et al. (2012); Dong et al. (2003, 2007); Eddaoudi et al. (2002); Kim et al. (2010); Ma & Zhou (2010); Rowsell & Yaghi (2005); Yoshizawa et al. (2006); Zhang et al. (2008).
For the preparation of L, 5-(pyridin-4-yl)-1,3,4-oxadiazole-2-thiol (2.69 g, 15 mmol) and 4-vinylpyridine (1.57 g, 15 mmol) were added with stirring to glacial acetic acid (30 ml) The mixture was stirred for 2 h at 373 K and the reaction monitored by thin-layer chromatography. After removal of the solvent under vacuum, a cold NaOH aqueous solution (5%) was used to neutralize the pH of the solution to 7. The product was filtered off, washed and dried in air. The residue was purified on silica gel by column chromatography using CH2Cl2 as eluent, to afford L as a white crystalline solid (yield 3.00 g, 70.4%). Spectroscopic analysis: IR (KBr pellet, ν, cm-1): 3026 (w), 1953 (w), 1590 (ms), 1555 (ms), 1494 (w), 1463 (s), 1415 (s), 1348 (ms), 1316 (m), 1285 (m), 1234 (ms), 1199 (ms), 1101 (m), 1073 (m), 1044 (m), 1027 (ms), 987 (m), 958 (m), 859 (m), 816 (ms), 762 (m), 734 (m), 698 (ms), 685 (m), 579 (m), 546 (ms), 512 (ms); 1H NMR (300 MHz, CDCl3, 298 K, TMS, δ, p.p.m.): 8.84–8.82 (d, 2H, –C6H4), 8.48–8.47 (d, 2H, –C6H4), 7.81–7.79 (d, 2H, –C6H4), 7.33–7.31 (d, 2H, –C6H4), 4.45–4.40 (t, 2H, –CH2), 3.21–3.16 (t, 2H, –CH2). Elemental analysis (%), calculated for C14H12N4OS: C 59.14, H 4.25, N 19.70; found: C 59.12, H 4.24, N 19.73.
For the preparation of (I), a solution of Zn(NO3)2 (22.42 mg, 0.053 mmol) in acetonitrile (10 ml) was layered onto a solution of L (14.21 mg, 0.053 mmol) in CH2Cl2 (10 ml). The system was left for about one week at room temperature and yellow crystals of (I) were obtained (yield 10.02 mg, 40%). Spectroscopic analysis: IR (KBr pellet, ν, cm-1): 3446 (w), 3120 (w), 2952 (w), 1626 (s), 1484 (vs), 1411 (vs), 1286 (s), 1243 (m), 1021 (m), 828 (m), 746 (m), 598 (m), 516 (m). Elemental analysis (%), calculated for C28H24N12O14S2Zn2: C 35.49, H 2.55, N 17.73; found: C 35.50, H 2.58, N 17.70.
For the preparation of (II), a solution of Cu(NO3)2 (12.81 mg, 0.053 mmol) in acetonitrile (10 ml) was layered onto a solution of L (14.21 mg, 0.053 mmol) in CH2Cl2 (10 ml). The system was left for about one week at room temperature and blue crystals of (II) were obtained (yield 15.05 mg, 40%). Spectroscopic analysis: IR (KBr pellet, ν, cm-1): 3423 (m), 3045 (w), 1624 (s), 1417 (s), 1384 (vs), 1301 (s), 1253 (m), 1036 (m), 931 (w), 837 (m), 743 (m), 669 (m), 549 (m). Elemental analysis (%), calculated for C32.5H31.5Cl3CuN11.5O8S2: C 41.26, H 3.33, N 17.03; found: C 41.21, H 3.65, N 16.98.
H atoms were placed in geometrically idealized positions and refined using riding models. For (I), C—H = 0.93 or 0.97 Å (CH2), and for (II) C—H = 0.95, 0.99 (CH2) or 0.98 Å (CH3). Uiso(H) values were set at 1.5Ueq(C) for methyl H atoms or at 1.2Ueq(C) otherwise. For (II), after data collection and initial solution and refinement, the program ROTAX (Cooper et al., 2002) suggested that the sample was twinned. Using the twin matrix (-1 0 0, -0.044 0.088 -0.912, 0.044 -1.088 -0.088) a modified reflection file was created, and final refinement against this data gave a batch scale factor of 0.106 (2) and improved both the R factors and the residual electron density. After several trial calculations, a model of disorder involving half a dichloromethane molecule sharing a site with half an acetonitrile molecule was employed to model one of the three solvent sites.
For both compounds, data collection: SMART (Bruker, 2003); cell refinement: SMART (Bruker, 2003); data reduction: SAINT (Bruker, 2003); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
[Zn2(NO3)4(C14H12N4OS)2] | F(000) = 960 |
Mr = 947.45 | Dx = 1.699 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P2yn | Cell parameters from 1366 reflections |
a = 7.8239 (17) Å | θ = 2.7–20.1° |
b = 11.033 (2) Å | µ = 1.49 mm−1 |
c = 21.677 (4) Å | T = 298 K |
β = 98.125 (4)° | Block, yellow |
V = 1852.4 (7) Å3 | 0.40 × 0.20 × 0.20 mm |
Z = 2 |
Bruker SMART CCD area-detector diffractometer | 3451 independent reflections |
Radiation source: fine-focus sealed tube | 2477 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.046 |
ϕ and ω scans | θmax = 25.5°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2003) | h = −7→9 |
Tmin = 0.587, Tmax = 0.755 | k = −12→13 |
8960 measured reflections | l = −26→17 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.112 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0442P)2 + 0.1503P] where P = (Fo2 + 2Fc2)/3 |
3451 reflections | (Δ/σ)max < 0.001 |
262 parameters | Δρmax = 0.42 e Å−3 |
0 restraints | Δρmin = −0.25 e Å−3 |
[Zn2(NO3)4(C14H12N4OS)2] | V = 1852.4 (7) Å3 |
Mr = 947.45 | Z = 2 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.8239 (17) Å | µ = 1.49 mm−1 |
b = 11.033 (2) Å | T = 298 K |
c = 21.677 (4) Å | 0.40 × 0.20 × 0.20 mm |
β = 98.125 (4)° |
Bruker SMART CCD area-detector diffractometer | 3451 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2003) | 2477 reflections with I > 2σ(I) |
Tmin = 0.587, Tmax = 0.755 | Rint = 0.046 |
8960 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.112 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.42 e Å−3 |
3451 reflections | Δρmin = −0.25 e Å−3 |
262 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.1924 (5) | 0.8898 (4) | 0.36855 (18) | 0.0458 (10) | |
H1 | 0.2885 | 0.9328 | 0.3870 | 0.055* | |
C2 | 0.1499 (5) | 0.7857 (4) | 0.39629 (18) | 0.0453 (10) | |
H2 | 0.2190 | 0.7578 | 0.4319 | 0.054* | |
C3 | 0.0051 (5) | 0.7214 (3) | 0.37200 (17) | 0.0389 (10) | |
C4 | −0.0883 (5) | 0.7661 (4) | 0.31815 (19) | 0.0457 (10) | |
H4 | −0.1869 | 0.7259 | 0.2997 | 0.055* | |
C5 | −0.0353 (5) | 0.8700 (4) | 0.29203 (18) | 0.0435 (10) | |
H5 | −0.0995 | 0.8977 | 0.2554 | 0.052* | |
C6 | −0.0479 (5) | 0.6086 (3) | 0.40284 (18) | 0.0443 (10) | |
H6A | 0.0549 | 0.5669 | 0.4223 | 0.053* | |
H6B | −0.1071 | 0.5552 | 0.3712 | 0.053* | |
C7 | −0.1652 (5) | 0.6325 (3) | 0.45180 (18) | 0.0440 (10) | |
H7A | −0.2730 | 0.6674 | 0.4320 | 0.053* | |
H7B | −0.1914 | 0.5565 | 0.4709 | 0.053* | |
C8 | −0.1405 (5) | 0.8249 (4) | 0.51453 (17) | 0.0411 (10) | |
C9 | 0.1182 (5) | 0.7855 (3) | 0.56352 (16) | 0.0352 (9) | |
C10 | 0.2802 (5) | 0.8104 (3) | 0.60301 (16) | 0.0334 (9) | |
C11 | 0.4158 (5) | 0.7311 (3) | 0.60591 (18) | 0.0461 (10) | |
H11 | 0.4035 | 0.6586 | 0.5838 | 0.055* | |
C12 | 0.5691 (5) | 0.7590 (4) | 0.64150 (19) | 0.0495 (11) | |
H12 | 0.6606 | 0.7049 | 0.6423 | 0.059* | |
C13 | 0.4605 (5) | 0.9356 (4) | 0.6733 (2) | 0.0509 (11) | |
H13 | 0.4736 | 1.0056 | 0.6975 | 0.061* | |
C14 | 0.3039 (5) | 0.9151 (4) | 0.63742 (19) | 0.0474 (11) | |
H14 | 0.2151 | 0.9714 | 0.6364 | 0.057* | |
N1 | 0.1031 (4) | 0.9338 (3) | 0.31605 (15) | 0.0387 (8) | |
N2 | −0.0838 (4) | 0.7152 (3) | 0.49982 (14) | 0.0379 (8) | |
N3 | 0.0796 (4) | 0.6902 (3) | 0.53068 (14) | 0.0392 (8) | |
N4 | 0.5932 (4) | 0.8612 (3) | 0.67533 (14) | 0.0408 (8) | |
N5 | 0.9943 (4) | 0.6994 (3) | 0.71778 (16) | 0.0454 (9) | |
N6 | 0.9075 (5) | 0.9448 (3) | 0.84361 (19) | 0.0535 (10) | |
O1 | −0.0073 (3) | 0.8717 (2) | 0.55623 (11) | 0.0403 (7) | |
O2 | 0.7622 (4) | 0.9465 (3) | 0.80821 (13) | 0.0557 (8) | |
O3 | 1.0381 (5) | 0.9301 (3) | 0.81804 (17) | 0.0770 (10) | |
O4 | 0.9123 (5) | 0.9592 (3) | 0.89967 (16) | 0.0788 (11) | |
O5 | 0.9865 (4) | 0.7964 (3) | 0.68598 (14) | 0.0635 (9) | |
O6 | 0.8955 (4) | 0.6921 (3) | 0.75781 (15) | 0.0664 (9) | |
O7 | 1.0940 (4) | 0.6197 (3) | 0.70801 (15) | 0.0651 (9) | |
S1 | −0.32184 (15) | 0.89597 (11) | 0.49226 (6) | 0.0623 (4) | |
Zn1 | 0.82669 (6) | 0.90971 (4) | 0.72341 (2) | 0.04542 (18) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.041 (2) | 0.051 (3) | 0.042 (3) | −0.010 (2) | −0.0041 (19) | −0.007 (2) |
C2 | 0.048 (3) | 0.049 (3) | 0.037 (2) | −0.005 (2) | −0.0019 (18) | 0.0033 (19) |
C3 | 0.043 (2) | 0.035 (2) | 0.038 (2) | 0.0037 (19) | 0.0017 (18) | −0.0090 (17) |
C4 | 0.042 (2) | 0.042 (2) | 0.050 (3) | −0.006 (2) | −0.0056 (19) | −0.004 (2) |
C5 | 0.037 (2) | 0.050 (3) | 0.041 (2) | 0.000 (2) | −0.0053 (18) | 0.0030 (19) |
C6 | 0.053 (3) | 0.034 (2) | 0.043 (3) | −0.001 (2) | −0.0020 (19) | −0.0077 (18) |
C7 | 0.045 (3) | 0.037 (2) | 0.046 (3) | −0.0122 (19) | −0.0064 (19) | −0.0013 (19) |
C8 | 0.043 (2) | 0.045 (3) | 0.035 (2) | −0.004 (2) | 0.0046 (18) | 0.0014 (18) |
C9 | 0.036 (2) | 0.035 (2) | 0.034 (2) | 0.0015 (18) | 0.0045 (16) | 0.0052 (17) |
C10 | 0.036 (2) | 0.033 (2) | 0.030 (2) | −0.0049 (17) | 0.0031 (16) | 0.0016 (16) |
C11 | 0.047 (3) | 0.035 (2) | 0.052 (3) | 0.000 (2) | −0.0101 (19) | −0.0100 (19) |
C12 | 0.043 (3) | 0.039 (2) | 0.063 (3) | 0.002 (2) | −0.005 (2) | −0.004 (2) |
C13 | 0.045 (3) | 0.053 (3) | 0.056 (3) | −0.009 (2) | 0.011 (2) | −0.023 (2) |
C14 | 0.040 (2) | 0.041 (2) | 0.060 (3) | 0.002 (2) | 0.005 (2) | −0.015 (2) |
N1 | 0.0357 (19) | 0.0359 (19) | 0.044 (2) | −0.0028 (15) | 0.0051 (15) | −0.0026 (15) |
N2 | 0.0361 (19) | 0.0365 (19) | 0.038 (2) | −0.0025 (15) | −0.0045 (14) | −0.0015 (15) |
N3 | 0.0361 (19) | 0.0379 (19) | 0.041 (2) | 0.0022 (15) | −0.0032 (14) | −0.0015 (15) |
N4 | 0.0373 (19) | 0.046 (2) | 0.038 (2) | −0.0082 (16) | 0.0008 (14) | −0.0034 (16) |
N5 | 0.040 (2) | 0.047 (2) | 0.046 (2) | −0.0031 (18) | −0.0026 (17) | 0.0048 (18) |
N6 | 0.065 (3) | 0.043 (2) | 0.049 (3) | −0.011 (2) | −0.006 (2) | 0.0103 (18) |
O1 | 0.0406 (16) | 0.0381 (15) | 0.0399 (17) | 0.0041 (13) | −0.0029 (12) | −0.0031 (12) |
O2 | 0.0458 (19) | 0.071 (2) | 0.0463 (19) | −0.0034 (15) | −0.0076 (14) | 0.0026 (15) |
O3 | 0.058 (2) | 0.091 (3) | 0.081 (3) | 0.000 (2) | 0.0063 (19) | 0.012 (2) |
O4 | 0.094 (3) | 0.091 (3) | 0.045 (2) | −0.025 (2) | −0.0108 (18) | 0.0034 (18) |
O5 | 0.068 (2) | 0.055 (2) | 0.072 (2) | 0.0029 (17) | 0.0222 (16) | 0.0237 (17) |
O6 | 0.074 (2) | 0.062 (2) | 0.068 (2) | 0.0126 (18) | 0.0258 (18) | 0.0188 (17) |
O7 | 0.058 (2) | 0.061 (2) | 0.074 (2) | 0.0184 (18) | 0.0026 (16) | 0.0023 (17) |
S1 | 0.0485 (7) | 0.0657 (8) | 0.0680 (9) | 0.0178 (6) | −0.0082 (5) | 0.0009 (6) |
Zn1 | 0.0400 (3) | 0.0484 (3) | 0.0460 (3) | −0.0088 (2) | 0.0000 (2) | 0.0011 (2) |
C1—N1 | 1.339 (5) | C10—C14 | 1.373 (5) |
C1—C2 | 1.360 (5) | C11—C12 | 1.366 (5) |
C1—H1 | 0.9300 | C11—H11 | 0.9300 |
C2—C3 | 1.377 (5) | C12—N4 | 1.344 (5) |
C2—H2 | 0.9300 | C12—H12 | 0.9300 |
C3—C4 | 1.378 (5) | C13—N4 | 1.320 (5) |
C3—C6 | 1.499 (5) | C13—C14 | 1.374 (6) |
C4—C5 | 1.368 (5) | C13—H13 | 0.9300 |
C4—H4 | 0.9300 | C14—H14 | 0.9300 |
C5—N1 | 1.334 (5) | N1—Zn1i | 2.036 (3) |
C5—H5 | 0.9300 | N2—N3 | 1.384 (4) |
C6—C7 | 1.521 (5) | N4—Zn1 | 2.043 (3) |
C6—H6A | 0.9700 | N5—O7 | 1.214 (4) |
C6—H6B | 0.9700 | N5—O6 | 1.244 (4) |
C7—N2 | 1.461 (4) | N5—O5 | 1.270 (4) |
C7—H7A | 0.9700 | N6—O4 | 1.221 (4) |
C7—H7B | 0.9700 | N6—O3 | 1.240 (5) |
C8—N2 | 1.343 (5) | N6—O2 | 1.279 (4) |
C8—O1 | 1.380 (4) | O2—Zn1 | 2.015 (3) |
C8—S1 | 1.633 (4) | O3—Zn1 | 2.457 (3) |
C9—N3 | 1.281 (4) | O5—Zn1 | 2.018 (3) |
C9—O1 | 1.360 (4) | O6—Zn1 | 2.549 (3) |
C9—C10 | 1.452 (5) | Zn1—N1i | 2.036 (3) |
C10—C11 | 1.370 (5) | ||
N1—C1—C2 | 123.4 (4) | N4—C12—C11 | 122.8 (4) |
N1—C1—H1 | 118.3 | N4—C12—H12 | 118.6 |
C2—C1—H1 | 118.3 | C11—C12—H12 | 118.6 |
C1—C2—C3 | 120.4 (4) | N4—C13—C14 | 123.4 (4) |
C1—C2—H2 | 119.8 | N4—C13—H13 | 118.3 |
C3—C2—H2 | 119.8 | C14—C13—H13 | 118.3 |
C2—C3—C4 | 116.6 (4) | C10—C14—C13 | 119.2 (4) |
C2—C3—C6 | 121.5 (3) | C10—C14—H14 | 120.4 |
C4—C3—C6 | 121.9 (4) | C13—C14—H14 | 120.4 |
C5—C4—C3 | 119.7 (4) | C5—N1—C1 | 115.9 (3) |
C5—C4—H4 | 120.2 | C5—N1—Zn1i | 122.4 (3) |
C3—C4—H4 | 120.2 | C1—N1—Zn1i | 121.6 (3) |
N1—C5—C4 | 123.9 (4) | C8—N2—N3 | 112.2 (3) |
N1—C5—H5 | 118.1 | C8—N2—C7 | 127.3 (3) |
C4—C5—H5 | 118.1 | N3—N2—C7 | 120.0 (3) |
C3—C6—C7 | 113.5 (3) | C9—N3—N2 | 103.6 (3) |
C3—C6—H6A | 108.9 | C13—N4—C12 | 117.1 (3) |
C7—C6—H6A | 108.9 | C13—N4—Zn1 | 119.8 (3) |
C3—C6—H6B | 108.9 | C12—N4—Zn1 | 123.0 (3) |
C7—C6—H6B | 108.9 | O7—N5—O6 | 123.5 (4) |
H6A—C6—H6B | 107.7 | O7—N5—O5 | 119.9 (4) |
N2—C7—C6 | 111.1 (3) | O6—N5—O5 | 116.5 (4) |
N2—C7—H7A | 109.4 | O4—N6—O3 | 123.4 (4) |
C6—C7—H7A | 109.4 | O4—N6—O2 | 119.7 (4) |
N2—C7—H7B | 109.4 | O3—N6—O2 | 116.9 (4) |
C6—C7—H7B | 109.4 | C9—O1—C8 | 106.3 (3) |
H7A—C7—H7B | 108.0 | N6—O2—Zn1 | 103.2 (3) |
N2—C8—O1 | 104.4 (3) | N6—O3—Zn1 | 83.4 (3) |
N2—C8—S1 | 131.7 (3) | N5—O5—Zn1 | 106.8 (3) |
O1—C8—S1 | 123.9 (3) | O2—Zn1—O5 | 137.83 (12) |
N3—C9—O1 | 113.6 (3) | O2—Zn1—N1i | 109.24 (12) |
N3—C9—C10 | 126.9 (3) | O5—Zn1—N1i | 97.86 (12) |
O1—C9—C10 | 119.4 (3) | O2—Zn1—N4 | 101.35 (12) |
C11—C10—C14 | 117.9 (3) | O5—Zn1—N4 | 101.13 (13) |
C11—C10—C9 | 120.8 (3) | N1i—Zn1—N4 | 106.42 (13) |
C14—C10—C9 | 121.3 (3) | O2—Zn1—O3 | 56.35 (12) |
C12—C11—C10 | 119.6 (3) | O5—Zn1—O3 | 90.57 (13) |
C12—C11—H11 | 120.2 | N1i—Zn1—O3 | 94.78 (12) |
C10—C11—H11 | 120.2 | N4—Zn1—O3 | 153.91 (13) |
N1—C1—C2—C3 | −2.4 (6) | C14—C13—N4—Zn1 | 173.7 (3) |
C1—C2—C3—C4 | 1.9 (6) | C11—C12—N4—C13 | 0.3 (6) |
C1—C2—C3—C6 | −178.0 (4) | C11—C12—N4—Zn1 | −175.3 (3) |
C2—C3—C4—C5 | −0.3 (6) | N3—C9—O1—C8 | 0.6 (4) |
C6—C3—C4—C5 | 179.5 (4) | C10—C9—O1—C8 | 177.3 (3) |
C3—C4—C5—N1 | −0.9 (6) | N2—C8—O1—C9 | −0.5 (4) |
C2—C3—C6—C7 | 88.6 (5) | S1—C8—O1—C9 | 178.9 (3) |
C4—C3—C6—C7 | −91.3 (4) | O4—N6—O2—Zn1 | −176.9 (3) |
C3—C6—C7—N2 | −57.1 (4) | O3—N6—O2—Zn1 | 4.1 (4) |
N3—C9—C10—C11 | 3.4 (6) | O4—N6—O3—Zn1 | 177.8 (4) |
O1—C9—C10—C11 | −172.8 (3) | O2—N6—O3—Zn1 | −3.3 (3) |
N3—C9—C10—C14 | −178.1 (4) | O7—N5—O5—Zn1 | −173.8 (3) |
O1—C9—C10—C14 | 5.7 (5) | O6—N5—O5—Zn1 | 6.6 (4) |
C14—C10—C11—C12 | −1.2 (6) | N6—O2—Zn1—O5 | 42.0 (3) |
C9—C10—C11—C12 | 177.4 (4) | N6—O2—Zn1—N1i | −85.0 (2) |
C10—C11—C12—N4 | 1.3 (7) | N6—O2—Zn1—N4 | 163.0 (2) |
C11—C10—C14—C13 | −0.4 (6) | N6—O2—Zn1—O3 | −2.2 (2) |
C9—C10—C14—C13 | −178.9 (4) | N5—O5—Zn1—O2 | 32.8 (3) |
N4—C13—C14—C10 | 2.1 (7) | N5—O5—Zn1—N1i | 163.2 (2) |
C4—C5—N1—C1 | 0.6 (6) | N5—O5—Zn1—N4 | −88.3 (3) |
C4—C5—N1—Zn1i | −178.4 (3) | N5—O5—Zn1—O3 | 68.3 (2) |
C2—C1—N1—C5 | 1.1 (6) | C13—N4—Zn1—O2 | 54.8 (3) |
C2—C1—N1—Zn1i | −179.9 (3) | C12—N4—Zn1—O2 | −129.8 (3) |
O1—C8—N2—N3 | 0.3 (4) | C13—N4—Zn1—O5 | −161.1 (3) |
S1—C8—N2—N3 | −179.1 (3) | C12—N4—Zn1—O5 | 14.3 (3) |
O1—C8—N2—C7 | −172.1 (3) | C13—N4—Zn1—N1i | −59.4 (3) |
S1—C8—N2—C7 | 8.5 (6) | C12—N4—Zn1—N1i | 116.1 (3) |
C6—C7—N2—C8 | 118.7 (4) | C13—N4—Zn1—O3 | 83.7 (4) |
C6—C7—N2—N3 | −53.1 (4) | C12—N4—Zn1—O3 | −100.8 (4) |
O1—C9—N3—N2 | −0.4 (4) | N6—O3—Zn1—O2 | 2.3 (2) |
C10—C9—N3—N2 | −176.8 (3) | N6—O3—Zn1—O5 | −149.8 (3) |
C8—N2—N3—C9 | 0.1 (4) | N6—O3—Zn1—N1i | 112.2 (3) |
C7—N2—N3—C9 | 173.0 (3) | N6—O3—Zn1—N4 | −32.5 (4) |
C14—C13—N4—C12 | −2.0 (6) |
Symmetry code: (i) −x+1, −y+2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5···O7ii | 0.93 | 2.48 | 3.201 (5) | 135 |
C11—H11···O4iii | 0.93 | 2.63 | 3.297 (5) | 129 |
Symmetry codes: (ii) x−3/2, −y+3/2, z−1/2; (iii) −x+3/2, y−1/2, −z+3/2. |
[Cu(NO3)(C14H12N4OS)2]NO3·1.5C2H3N·1.5CH2Cl2 | Z = 2 |
Mr = 945.20 | F(000) = 966 |
Triclinic, P1 | Dx = 1.594 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 12.012 (6) Å | Cell parameters from 4378 reflections |
b = 13.225 (7) Å | θ = 2.6–27.1° |
c = 14.402 (7) Å | µ = 0.93 mm−1 |
α = 99.751 (7)° | T = 123 K |
β = 110.223 (7)° | Block, blue |
γ = 106.204 (7)° | 0.26 × 0.20 × 0.10 mm |
V = 1969.8 (17) Å3 |
Bruker SMART CCD area-detector diffractometer | 10698 independent reflections |
Radiation source: fine-focus sealed tube | 8513 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.000 |
ϕ and ω scans | θmax = 26.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2003) | h = −14→14 |
Tmin = 0.794, Tmax = 0.913 | k = −16→16 |
10698 measured reflections | l = −17→17 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.170 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0976P)2 + 1.7273P] where P = (Fo2 + 2Fc2)/3 |
10698 reflections | (Δ/σ)max < 0.001 |
553 parameters | Δρmax = 0.73 e Å−3 |
0 restraints | Δρmin = −0.49 e Å−3 |
[Cu(NO3)(C14H12N4OS)2]NO3·1.5C2H3N·1.5CH2Cl2 | γ = 106.204 (7)° |
Mr = 945.20 | V = 1969.8 (17) Å3 |
Triclinic, P1 | Z = 2 |
a = 12.012 (6) Å | Mo Kα radiation |
b = 13.225 (7) Å | µ = 0.93 mm−1 |
c = 14.402 (7) Å | T = 123 K |
α = 99.751 (7)° | 0.26 × 0.20 × 0.10 mm |
β = 110.223 (7)° |
Bruker SMART CCD area-detector diffractometer | 10698 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2003) | 8513 reflections with I > 2σ(I) |
Tmin = 0.794, Tmax = 0.913 | Rint = 0.000 |
10698 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 0 restraints |
wR(F2) = 0.170 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.73 e Å−3 |
10698 reflections | Δρmin = −0.49 e Å−3 |
553 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2sigma(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
C1 | −0.0619 (4) | 0.8208 (3) | 0.5264 (3) | 0.0213 (8) | |
H1 | −0.1321 | 0.8435 | 0.5006 | 0.026* | |
C2 | 0.0543 (3) | 0.8995 (3) | 0.5924 (3) | 0.0202 (8) | |
H2 | 0.0637 | 0.9748 | 0.6117 | 0.024* | |
C3 | 0.1581 (4) | 0.8685 (3) | 0.6309 (3) | 0.0192 (7) | |
C4 | 0.1382 (4) | 0.7578 (3) | 0.6001 (3) | 0.0232 (8) | |
H4 | 0.2073 | 0.7334 | 0.6240 | 0.028* | |
C5 | 0.0192 (4) | 0.6837 (3) | 0.5354 (3) | 0.0230 (8) | |
H5 | 0.0071 | 0.6077 | 0.5173 | 0.028* | |
C6 | 0.2885 (3) | 0.9528 (3) | 0.6967 (3) | 0.0224 (8) | |
H6A | 0.3465 | 0.9153 | 0.7272 | 0.027* | |
H6B | 0.2851 | 1.0029 | 0.7543 | 0.027* | |
C7 | 0.3412 (4) | 1.0197 (3) | 0.6357 (3) | 0.0261 (8) | |
H7A | 0.2853 | 1.0598 | 0.6076 | 0.031* | |
H7B | 0.4269 | 1.0749 | 0.6824 | 0.031* | |
C8 | 0.2748 (4) | 0.9180 (3) | 0.4494 (3) | 0.0240 (8) | |
C9 | 0.4194 (3) | 0.8435 (3) | 0.4827 (3) | 0.0217 (8) | |
C10 | 0.4932 (4) | 0.7797 (3) | 0.4606 (3) | 0.0207 (8) | |
C11 | 0.5859 (4) | 0.7660 (3) | 0.5390 (3) | 0.0236 (8) | |
H11 | 0.6000 | 0.7946 | 0.6089 | 0.028* | |
C12 | 0.6587 (4) | 0.7105 (3) | 0.5161 (3) | 0.0232 (8) | |
H12 | 0.7215 | 0.6997 | 0.5710 | 0.028* | |
C13 | 0.5512 (4) | 0.6838 (3) | 0.3425 (3) | 0.0217 (8) | |
H13 | 0.5398 | 0.6559 | 0.2732 | 0.026* | |
C14 | 0.4717 (3) | 0.7346 (3) | 0.3589 (3) | 0.0210 (8) | |
H14 | 0.4043 | 0.7389 | 0.3026 | 0.025* | |
C15 | −0.0529 (4) | 0.6454 (3) | 0.2922 (3) | 0.0207 (8) | |
H15 | −0.0437 | 0.7196 | 0.3185 | 0.025* | |
C16 | 0.0197 (4) | 0.6249 (3) | 0.2411 (3) | 0.0208 (8) | |
H16 | 0.0786 | 0.6836 | 0.2326 | 0.025* | |
C17 | 0.0051 (4) | 0.5169 (3) | 0.2023 (3) | 0.0222 (8) | |
C18 | −0.0793 (4) | 0.4334 (3) | 0.2170 (3) | 0.0250 (8) | |
H18 | −0.0902 | 0.3586 | 0.1913 | 0.030* | |
C19 | −0.1469 (4) | 0.4611 (3) | 0.2697 (3) | 0.0229 (8) | |
H19 | −0.2044 | 0.4036 | 0.2807 | 0.027* | |
C20 | 0.0759 (4) | 0.4912 (3) | 0.1428 (3) | 0.0249 (8) | |
C21 | 0.2109 (4) | 0.5254 (3) | 0.0722 (3) | 0.0275 (9) | |
C22 | 0.1588 (4) | 0.3268 (3) | −0.0158 (3) | 0.0263 (8) | |
H22A | 0.2079 | 0.3565 | −0.0543 | 0.032* | |
H22B | 0.0734 | 0.2749 | −0.0671 | 0.032* | |
C23 | 0.2255 (4) | 0.2653 (3) | 0.0486 (3) | 0.0248 (8) | |
H23A | 0.1746 | 0.2334 | 0.0850 | 0.030* | |
H23B | 0.2302 | 0.2037 | 0.0023 | 0.030* | |
C24 | 0.3571 (4) | 0.3367 (3) | 0.1266 (3) | 0.0226 (8) | |
C25 | 0.3878 (4) | 0.3593 (3) | 0.2320 (3) | 0.0253 (8) | |
H25 | 0.3262 | 0.3263 | 0.2559 | 0.030* | |
C26 | 0.5074 (4) | 0.4294 (3) | 0.3013 (3) | 0.0233 (8) | |
H26 | 0.5273 | 0.4424 | 0.3732 | 0.028* | |
C27 | 0.5681 (4) | 0.4582 (3) | 0.1711 (3) | 0.0219 (8) | |
H27 | 0.6309 | 0.4929 | 0.1490 | 0.026* | |
C28 | 0.4509 (3) | 0.3871 (3) | 0.0973 (3) | 0.0209 (8) | |
H28 | 0.4345 | 0.3726 | 0.0260 | 0.025* | |
C29 | 0.4048 (5) | 0.8284 (4) | −0.0570 (4) | 0.0472 (12) | |
C30 | 0.5098 (5) | 0.8611 (4) | 0.0424 (4) | 0.0498 (12) | |
H30B | 0.5553 | 0.9410 | 0.0639 | 0.075* | |
H30A | 0.5680 | 0.8233 | 0.0377 | 0.075* | |
H30C | 0.4777 | 0.8414 | 0.0934 | 0.075* | |
C31 | 0.2757 (5) | 0.9767 (4) | 0.1943 (4) | 0.0510 (13) | |
H31A | 0.3188 | 0.9932 | 0.2704 | 0.061* | |
H31B | 0.1931 | 0.9869 | 0.1777 | 0.061* | |
C32 | 0.933 (2) | 0.0860 (13) | 0.1436 (17) | 0.065 (7) | 0.50 |
H32A | 0.8608 | 0.1059 | 0.1052 | 0.079* | 0.50 |
H32B | 0.9044 | 0.0345 | 0.1802 | 0.079* | 0.50 |
C33 | 0.887 (2) | 0.085 (2) | 0.127 (2) | 0.087 (8) | 0.50 |
H33A | 0.8502 | 0.0116 | 0.1338 | 0.131* | 0.50 |
H33B | 0.8706 | 0.0786 | 0.0546 | 0.131* | 0.50 |
H33C | 0.8485 | 0.1339 | 0.1512 | 0.131* | 0.50 |
C34 | 1.0259 (13) | 0.1299 (8) | 0.1908 (8) | 0.037 (2) | 0.50 |
Cl1 | 0.24799 (17) | 0.83986 (10) | 0.13530 (11) | 0.0680 (4) | |
Cl2 | 0.36992 (14) | 1.06891 (10) | 0.15306 (11) | 0.0579 (4) | |
Cl3 | 1.0581 (3) | 0.2049 (3) | 0.2343 (2) | 0.0544 (7) | 0.50 |
Cl4 | 0.9810 (3) | 0.0205 (2) | 0.0557 (2) | 0.0683 (8) | 0.50 |
Cu1 | −0.24221 (4) | 0.59940 (3) | 0.38295 (3) | 0.01993 (13) | |
N1 | −0.0818 (3) | 0.7133 (2) | 0.4962 (2) | 0.0187 (6) | |
N2 | 0.3501 (3) | 0.9495 (2) | 0.5504 (2) | 0.0217 (7) | |
N3 | 0.4424 (3) | 0.9028 (2) | 0.5728 (2) | 0.0221 (7) | |
N4 | 0.6438 (3) | 0.6712 (2) | 0.4186 (2) | 0.0201 (6) | |
N5 | −0.1367 (3) | 0.5649 (2) | 0.3067 (2) | 0.0204 (6) | |
N6 | 0.0599 (3) | 0.3944 (3) | 0.0915 (2) | 0.0261 (7) | |
N7 | 0.1449 (3) | 0.4170 (2) | 0.0471 (2) | 0.0242 (7) | |
N8 | 0.5982 (3) | 0.4809 (2) | 0.2729 (2) | 0.0202 (6) | |
N9 | −0.2433 (3) | 0.4513 (3) | 0.5325 (3) | 0.0309 (8) | |
N10 | 0.7546 (3) | 0.7875 (2) | 0.2167 (2) | 0.0260 (7) | |
N11 | 0.3232 (5) | 0.8035 (4) | −0.1342 (4) | 0.0749 (16) | |
N12 | 1.1293 (9) | 0.1598 (7) | 0.2420 (6) | 0.047 (2) | 0.50 |
O1 | 0.3215 (2) | 0.84979 (19) | 0.40484 (19) | 0.0231 (6) | |
O2 | 0.1647 (3) | 0.5744 (2) | 0.1352 (2) | 0.0269 (6) | |
O3 | −0.2129 (3) | 0.4670 (2) | 0.4586 (2) | 0.0304 (6) | |
O4 | −0.2311 (3) | 0.3730 (2) | 0.5648 (2) | 0.0399 (7) | |
O5 | −0.2904 (5) | 0.5104 (3) | 0.5668 (3) | 0.0801 (14) | |
O7 | 0.7940 (3) | 0.8094 (2) | 0.3124 (2) | 0.0399 (7) | |
O6 | 0.6784 (3) | 0.6944 (2) | 0.1613 (2) | 0.0474 (8) | |
O8 | 0.7936 (4) | 0.8580 (2) | 0.1786 (2) | 0.0506 (9) | |
S1 | 0.15509 (10) | 0.94974 (8) | 0.38462 (8) | 0.0315 (2) | |
S2 | 0.32176 (11) | 0.59376 (9) | 0.04184 (9) | 0.0376 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.026 (2) | 0.0226 (18) | 0.0214 (18) | 0.0114 (16) | 0.0144 (16) | 0.0063 (14) |
C2 | 0.023 (2) | 0.0201 (17) | 0.0211 (18) | 0.0078 (15) | 0.0132 (16) | 0.0056 (14) |
C3 | 0.028 (2) | 0.0196 (17) | 0.0163 (17) | 0.0111 (16) | 0.0144 (16) | 0.0045 (14) |
C4 | 0.025 (2) | 0.0240 (19) | 0.0221 (19) | 0.0130 (17) | 0.0079 (16) | 0.0075 (15) |
C5 | 0.029 (2) | 0.0168 (17) | 0.0238 (19) | 0.0110 (16) | 0.0108 (17) | 0.0046 (14) |
C6 | 0.019 (2) | 0.0238 (18) | 0.0212 (18) | 0.0072 (16) | 0.0082 (16) | 0.0013 (15) |
C7 | 0.027 (2) | 0.0220 (19) | 0.033 (2) | 0.0107 (17) | 0.0171 (18) | 0.0032 (16) |
C8 | 0.031 (2) | 0.0164 (17) | 0.034 (2) | 0.0116 (16) | 0.0214 (18) | 0.0084 (15) |
C9 | 0.019 (2) | 0.0192 (18) | 0.028 (2) | 0.0056 (15) | 0.0118 (16) | 0.0076 (15) |
C10 | 0.023 (2) | 0.0169 (17) | 0.0258 (19) | 0.0059 (15) | 0.0141 (16) | 0.0080 (14) |
C11 | 0.029 (2) | 0.0208 (18) | 0.0227 (19) | 0.0091 (16) | 0.0142 (17) | 0.0044 (15) |
C12 | 0.023 (2) | 0.0223 (18) | 0.0210 (19) | 0.0065 (16) | 0.0082 (16) | 0.0035 (15) |
C13 | 0.029 (2) | 0.0174 (17) | 0.0223 (19) | 0.0101 (16) | 0.0133 (17) | 0.0053 (14) |
C14 | 0.0186 (19) | 0.0193 (17) | 0.0216 (19) | 0.0064 (15) | 0.0050 (15) | 0.0054 (14) |
C15 | 0.024 (2) | 0.0179 (17) | 0.0244 (19) | 0.0095 (15) | 0.0147 (16) | 0.0049 (14) |
C16 | 0.021 (2) | 0.0205 (18) | 0.0228 (19) | 0.0039 (15) | 0.0129 (16) | 0.0074 (14) |
C17 | 0.022 (2) | 0.0259 (19) | 0.0191 (18) | 0.0101 (16) | 0.0090 (16) | 0.0044 (15) |
C18 | 0.031 (2) | 0.0198 (18) | 0.028 (2) | 0.0103 (17) | 0.0179 (18) | 0.0036 (15) |
C19 | 0.023 (2) | 0.0195 (18) | 0.027 (2) | 0.0082 (16) | 0.0123 (17) | 0.0054 (15) |
C20 | 0.020 (2) | 0.028 (2) | 0.026 (2) | 0.0049 (16) | 0.0129 (17) | 0.0059 (16) |
C21 | 0.033 (2) | 0.032 (2) | 0.025 (2) | 0.0186 (19) | 0.0154 (18) | 0.0102 (16) |
C22 | 0.023 (2) | 0.032 (2) | 0.0204 (19) | 0.0100 (17) | 0.0095 (16) | −0.0018 (16) |
C23 | 0.029 (2) | 0.0201 (18) | 0.0218 (19) | 0.0057 (16) | 0.0124 (17) | −0.0012 (15) |
C24 | 0.026 (2) | 0.0218 (18) | 0.0232 (19) | 0.0123 (16) | 0.0118 (16) | 0.0060 (15) |
C25 | 0.031 (2) | 0.0229 (18) | 0.026 (2) | 0.0090 (17) | 0.0180 (18) | 0.0060 (15) |
C26 | 0.031 (2) | 0.0272 (19) | 0.0191 (18) | 0.0131 (17) | 0.0152 (17) | 0.0087 (15) |
C27 | 0.028 (2) | 0.0210 (18) | 0.0260 (19) | 0.0111 (16) | 0.0196 (17) | 0.0089 (15) |
C28 | 0.025 (2) | 0.0224 (18) | 0.0210 (18) | 0.0101 (16) | 0.0156 (16) | 0.0057 (14) |
C29 | 0.056 (3) | 0.034 (2) | 0.041 (3) | 0.002 (2) | 0.017 (3) | 0.015 (2) |
C30 | 0.043 (3) | 0.041 (3) | 0.048 (3) | 0.006 (2) | 0.006 (2) | 0.012 (2) |
C31 | 0.068 (4) | 0.037 (3) | 0.063 (3) | 0.019 (3) | 0.044 (3) | 0.016 (2) |
C32 | 0.063 (16) | 0.026 (6) | 0.070 (12) | −0.029 (8) | 0.041 (12) | −0.026 (7) |
C33 | 0.042 (13) | 0.134 (18) | 0.079 (12) | 0.011 (11) | 0.027 (10) | 0.046 (12) |
C34 | 0.063 (9) | 0.016 (5) | 0.034 (5) | 0.009 (5) | 0.030 (6) | 0.003 (4) |
Cl1 | 0.1086 (13) | 0.0358 (6) | 0.0641 (9) | 0.0193 (7) | 0.0468 (9) | 0.0136 (6) |
Cl2 | 0.0644 (9) | 0.0474 (7) | 0.0644 (8) | 0.0155 (7) | 0.0278 (7) | 0.0286 (6) |
Cl3 | 0.0576 (18) | 0.0609 (19) | 0.0400 (14) | 0.0062 (16) | 0.0263 (13) | 0.0165 (15) |
Cl4 | 0.066 (2) | 0.0419 (14) | 0.082 (2) | 0.0001 (13) | 0.0362 (17) | 0.0020 (13) |
Cu1 | 0.0201 (3) | 0.0191 (2) | 0.0208 (2) | 0.00786 (19) | 0.01034 (19) | 0.00148 (17) |
N1 | 0.0215 (17) | 0.0201 (15) | 0.0186 (15) | 0.0085 (13) | 0.0118 (13) | 0.0064 (12) |
N2 | 0.0267 (18) | 0.0224 (15) | 0.0252 (17) | 0.0138 (14) | 0.0171 (14) | 0.0075 (13) |
N3 | 0.0204 (17) | 0.0208 (15) | 0.0303 (18) | 0.0098 (13) | 0.0137 (14) | 0.0089 (13) |
N4 | 0.0246 (17) | 0.0165 (14) | 0.0191 (15) | 0.0059 (13) | 0.0110 (13) | 0.0038 (12) |
N5 | 0.0194 (17) | 0.0216 (15) | 0.0207 (15) | 0.0090 (13) | 0.0093 (13) | 0.0031 (12) |
N6 | 0.0226 (18) | 0.0325 (18) | 0.0269 (17) | 0.0101 (14) | 0.0167 (15) | 0.0038 (14) |
N7 | 0.0235 (18) | 0.0272 (17) | 0.0267 (17) | 0.0084 (14) | 0.0181 (15) | 0.0043 (13) |
N8 | 0.0249 (17) | 0.0152 (14) | 0.0222 (16) | 0.0096 (13) | 0.0120 (14) | 0.0011 (12) |
N9 | 0.034 (2) | 0.0303 (18) | 0.0299 (19) | 0.0145 (16) | 0.0124 (16) | 0.0099 (15) |
N10 | 0.0331 (19) | 0.0259 (17) | 0.0264 (18) | 0.0164 (15) | 0.0166 (15) | 0.0074 (14) |
N11 | 0.076 (4) | 0.058 (3) | 0.044 (3) | −0.014 (3) | −0.003 (3) | 0.024 (2) |
N12 | 0.058 (6) | 0.040 (5) | 0.032 (5) | 0.010 (5) | 0.011 (5) | 0.013 (4) |
O1 | 0.0264 (15) | 0.0229 (13) | 0.0275 (14) | 0.0128 (11) | 0.0165 (12) | 0.0080 (11) |
O2 | 0.0303 (16) | 0.0243 (13) | 0.0345 (15) | 0.0121 (12) | 0.0219 (13) | 0.0072 (11) |
O3 | 0.0414 (18) | 0.0273 (14) | 0.0275 (15) | 0.0144 (13) | 0.0171 (13) | 0.0111 (11) |
O4 | 0.048 (2) | 0.0352 (16) | 0.0513 (19) | 0.0205 (15) | 0.0253 (16) | 0.0299 (14) |
O5 | 0.156 (4) | 0.080 (3) | 0.085 (3) | 0.088 (3) | 0.093 (3) | 0.054 (2) |
O7 | 0.053 (2) | 0.0506 (18) | 0.0195 (15) | 0.0240 (16) | 0.0158 (14) | 0.0075 (13) |
O6 | 0.058 (2) | 0.0302 (16) | 0.0408 (18) | 0.0015 (15) | 0.0239 (17) | −0.0041 (14) |
O8 | 0.083 (3) | 0.0371 (17) | 0.0459 (19) | 0.0211 (18) | 0.039 (2) | 0.0207 (15) |
S1 | 0.0355 (6) | 0.0354 (6) | 0.0360 (6) | 0.0235 (5) | 0.0184 (5) | 0.0149 (4) |
S2 | 0.0454 (7) | 0.0337 (6) | 0.0497 (7) | 0.0144 (5) | 0.0360 (6) | 0.0167 (5) |
C1—N1 | 1.341 (4) | C22—C23 | 1.506 (5) |
C1—C2 | 1.368 (5) | C22—H22A | 0.9900 |
C1—H1 | 0.9500 | C22—H22B | 0.9900 |
C2—C3 | 1.383 (5) | C23—C24 | 1.494 (5) |
C2—H2 | 0.9500 | C23—H23A | 0.9900 |
C3—C4 | 1.381 (5) | C23—H23B | 0.9900 |
C3—C6 | 1.495 (5) | C24—C28 | 1.379 (5) |
C4—C5 | 1.363 (5) | C24—C25 | 1.388 (5) |
C4—H4 | 0.9500 | C25—C26 | 1.368 (5) |
C5—N1 | 1.345 (5) | C25—H25 | 0.9500 |
C5—H5 | 0.9500 | C26—N8 | 1.345 (5) |
C6—C7 | 1.514 (5) | C26—H26 | 0.9500 |
C6—H6A | 0.9900 | C27—N8 | 1.339 (4) |
C6—H6B | 0.9900 | C27—C28 | 1.373 (5) |
C7—N2 | 1.464 (4) | C27—H27 | 0.9500 |
C7—H7A | 0.9900 | C28—H28 | 0.9500 |
C7—H7B | 0.9900 | C29—N11 | 1.117 (6) |
C8—N2 | 1.334 (5) | C29—C30 | 1.437 (7) |
C8—O1 | 1.370 (4) | C30—H30B | 0.9800 |
C8—S1 | 1.630 (4) | C30—H30A | 0.9800 |
C9—N3 | 1.289 (5) | C30—H30C | 0.9800 |
C9—O1 | 1.350 (4) | C31—Cl1 | 1.748 (5) |
C9—C10 | 1.457 (5) | C31—Cl2 | 1.749 (5) |
C10—C11 | 1.364 (5) | C31—H31A | 0.9900 |
C10—C14 | 1.387 (5) | C31—H31B | 0.9900 |
C11—C12 | 1.374 (5) | C32—Cl3 | 1.749 (16) |
C11—H11 | 0.9500 | C32—Cl4 | 1.757 (18) |
C12—N4 | 1.341 (4) | C32—H32A | 0.9900 |
C12—H12 | 0.9500 | C32—H32B | 0.9900 |
C13—N4 | 1.338 (5) | C33—C34 | 1.48 (2) |
C13—C14 | 1.371 (5) | C33—H33A | 0.9800 |
C13—H13 | 0.9500 | C33—H33B | 0.9800 |
C14—H14 | 0.9500 | C33—H33C | 0.9800 |
C15—N5 | 1.347 (4) | C34—N12 | 1.112 (15) |
C15—C16 | 1.373 (5) | Cl4—Cl4i | 1.850 (6) |
C15—H15 | 0.9500 | Cu1—N1 | 2.005 (3) |
C16—C17 | 1.380 (5) | Cu1—N8ii | 2.006 (3) |
C16—H16 | 0.9500 | Cu1—N4ii | 2.022 (3) |
C17—C18 | 1.376 (5) | Cu1—N5 | 2.033 (3) |
C17—C20 | 1.463 (5) | Cu1—O3 | 2.259 (3) |
C18—C19 | 1.366 (5) | N2—N3 | 1.385 (4) |
C18—H18 | 0.9500 | N4—Cu1iii | 2.022 (3) |
C19—N5 | 1.340 (4) | N6—N7 | 1.374 (4) |
C19—H19 | 0.9500 | N8—Cu1iii | 2.006 (3) |
C20—N6 | 1.291 (5) | N9—O5 | 1.219 (4) |
C20—O2 | 1.352 (4) | N9—O4 | 1.230 (4) |
C21—N7 | 1.344 (5) | N9—O3 | 1.269 (4) |
C21—O2 | 1.377 (4) | N10—O8 | 1.224 (4) |
C21—S2 | 1.627 (4) | N10—O6 | 1.234 (4) |
C22—N7 | 1.457 (4) | N10—O7 | 1.243 (4) |
N1—C1—C2 | 123.4 (3) | C28—C24—C25 | 117.3 (3) |
N1—C1—H1 | 118.3 | C28—C24—C23 | 121.6 (3) |
C2—C1—H1 | 118.3 | C25—C24—C23 | 121.1 (3) |
C1—C2—C3 | 119.4 (3) | C26—C25—C24 | 119.6 (3) |
C1—C2—H2 | 120.3 | C26—C25—H25 | 120.2 |
C3—C2—H2 | 120.3 | C24—C25—H25 | 120.2 |
C4—C3—C2 | 117.5 (3) | N8—C26—C25 | 123.3 (3) |
C4—C3—C6 | 121.4 (3) | N8—C26—H26 | 118.3 |
C2—C3—C6 | 121.0 (3) | C25—C26—H26 | 118.3 |
C5—C4—C3 | 119.9 (3) | N8—C27—C28 | 123.1 (3) |
C5—C4—H4 | 120.0 | N8—C27—H27 | 118.5 |
C3—C4—H4 | 120.0 | C28—C27—H27 | 118.5 |
N1—C5—C4 | 123.0 (3) | C27—C28—C24 | 120.0 (3) |
N1—C5—H5 | 118.5 | C27—C28—H28 | 120.0 |
C4—C5—H5 | 118.5 | C24—C28—H28 | 120.0 |
C3—C6—C7 | 112.1 (3) | N11—C29—C30 | 179.6 (6) |
C3—C6—H6A | 109.2 | C29—C30—H30B | 109.5 |
C7—C6—H6A | 109.2 | C29—C30—H30A | 109.5 |
C3—C6—H6B | 109.2 | H30B—C30—H30A | 109.5 |
C7—C6—H6B | 109.2 | C29—C30—H30C | 109.5 |
H6A—C6—H6B | 107.9 | H30B—C30—H30C | 109.5 |
N2—C7—C6 | 111.5 (3) | H30A—C30—H30C | 109.5 |
N2—C7—H7A | 109.3 | Cl1—C31—Cl2 | 111.8 (3) |
C6—C7—H7A | 109.3 | Cl1—C31—H31A | 109.3 |
N2—C7—H7B | 109.3 | Cl2—C31—H31A | 109.3 |
C6—C7—H7B | 109.3 | Cl1—C31—H31B | 109.3 |
H7A—C7—H7B | 108.0 | Cl2—C31—H31B | 109.3 |
N2—C8—O1 | 104.4 (3) | H31A—C31—H31B | 107.9 |
N2—C8—S1 | 131.6 (3) | Cl3—C32—Cl4 | 111.4 (11) |
O1—C8—S1 | 124.0 (3) | Cl3—C32—H32A | 109.3 |
N3—C9—O1 | 113.7 (3) | Cl4—C32—H32A | 109.3 |
N3—C9—C10 | 125.8 (3) | Cl3—C32—H32B | 109.3 |
O1—C9—C10 | 120.4 (3) | Cl4—C32—H32B | 109.3 |
C11—C10—C14 | 119.4 (3) | H32A—C32—H32B | 108.0 |
C11—C10—C9 | 120.7 (3) | C34—C33—H33A | 109.5 |
C14—C10—C9 | 119.8 (3) | C34—C33—H33B | 109.5 |
C10—C11—C12 | 119.4 (3) | H33A—C33—H33B | 109.5 |
C10—C11—H11 | 120.3 | C34—C33—H33C | 109.5 |
C12—C11—H11 | 120.3 | H33A—C33—H33C | 109.5 |
N4—C12—C11 | 122.1 (4) | H33B—C33—H33C | 109.5 |
N4—C12—H12 | 118.9 | N12—C34—C33 | 175.8 (15) |
C11—C12—H12 | 118.9 | C32—Cl4—Cl4i | 163.9 (9) |
N4—C13—C14 | 123.6 (3) | N1—Cu1—N8ii | 177.63 (12) |
N4—C13—H13 | 118.2 | N1—Cu1—N4ii | 93.81 (12) |
C14—C13—H13 | 118.2 | N8ii—Cu1—N4ii | 86.99 (12) |
C13—C14—C10 | 117.6 (3) | N1—Cu1—N5 | 88.58 (12) |
C13—C14—H14 | 121.2 | N8ii—Cu1—N5 | 91.57 (12) |
C10—C14—H14 | 121.2 | N4ii—Cu1—N5 | 156.54 (12) |
N5—C15—C16 | 122.8 (3) | N1—Cu1—O3 | 91.35 (11) |
N5—C15—H15 | 118.6 | N8ii—Cu1—O3 | 86.29 (12) |
C16—C15—H15 | 118.6 | N4ii—Cu1—O3 | 114.84 (11) |
C15—C16—C17 | 118.3 (3) | N5—Cu1—O3 | 88.39 (11) |
C15—C16—H16 | 120.8 | C1—N1—C5 | 116.8 (3) |
C17—C16—H16 | 120.8 | C1—N1—Cu1 | 124.4 (2) |
C18—C17—C16 | 119.8 (3) | C5—N1—Cu1 | 118.2 (2) |
C18—C17—C20 | 120.2 (3) | C8—N2—N3 | 112.7 (3) |
C16—C17—C20 | 120.0 (3) | C8—N2—C7 | 128.3 (3) |
C19—C18—C17 | 118.1 (3) | N3—N2—C7 | 118.9 (3) |
C19—C18—H18 | 120.9 | C9—N3—N2 | 102.6 (3) |
C17—C18—H18 | 120.9 | C13—N4—C12 | 117.7 (3) |
N5—C19—C18 | 123.7 (3) | C13—N4—Cu1iii | 119.1 (2) |
N5—C19—H19 | 118.2 | C12—N4—Cu1iii | 123.2 (3) |
C18—C19—H19 | 118.2 | C19—N5—C15 | 117.3 (3) |
N6—C20—O2 | 114.1 (3) | C19—N5—Cu1 | 121.3 (2) |
N6—C20—C17 | 126.4 (3) | C15—N5—Cu1 | 121.4 (2) |
O2—C20—C17 | 119.4 (3) | C20—N6—N7 | 102.7 (3) |
N7—C21—O2 | 104.3 (3) | C21—N7—N6 | 112.8 (3) |
N7—C21—S2 | 132.0 (3) | C21—N7—C22 | 127.4 (3) |
O2—C21—S2 | 123.7 (3) | N6—N7—C22 | 119.7 (3) |
N7—C22—C23 | 112.2 (3) | C27—N8—C26 | 116.8 (3) |
N7—C22—H22A | 109.2 | C27—N8—Cu1iii | 124.7 (2) |
C23—C22—H22A | 109.2 | C26—N8—Cu1iii | 118.0 (2) |
N7—C22—H22B | 109.2 | O5—N9—O4 | 120.8 (3) |
C23—C22—H22B | 109.2 | O5—N9—O3 | 119.6 (3) |
H22A—C22—H22B | 107.9 | O4—N9—O3 | 119.4 (3) |
C24—C23—C22 | 112.9 (3) | O8—N10—O6 | 120.8 (3) |
C24—C23—H23A | 109.0 | O8—N10—O7 | 119.5 (3) |
C22—C23—H23A | 109.0 | O6—N10—O7 | 119.7 (3) |
C24—C23—H23B | 109.0 | C9—O1—C8 | 106.6 (3) |
C22—C23—H23B | 109.0 | C20—O2—C21 | 106.0 (3) |
H23A—C23—H23B | 107.8 | N9—O3—Cu1 | 123.8 (2) |
N1—C1—C2—C3 | 0.1 (5) | O1—C8—N2—C7 | −177.4 (3) |
C1—C2—C3—C4 | −0.2 (5) | S1—C8—N2—C7 | 4.1 (6) |
C1—C2—C3—C6 | 175.3 (3) | C6—C7—N2—C8 | 104.7 (4) |
C2—C3—C4—C5 | −0.9 (5) | C6—C7—N2—N3 | −71.6 (4) |
C6—C3—C4—C5 | −176.4 (3) | O1—C9—N3—N2 | 0.8 (4) |
C3—C4—C5—N1 | 2.2 (5) | C10—C9—N3—N2 | 177.0 (3) |
C4—C3—C6—C7 | 106.1 (4) | C8—N2—N3—C9 | 0.1 (4) |
C2—C3—C6—C7 | −69.3 (4) | C7—N2—N3—C9 | 176.9 (3) |
C3—C6—C7—N2 | −59.8 (4) | C14—C13—N4—C12 | 0.2 (5) |
N3—C9—C10—C11 | 9.1 (5) | C14—C13—N4—Cu1iii | −177.8 (3) |
O1—C9—C10—C11 | −175.0 (3) | C11—C12—N4—C13 | −2.6 (5) |
N3—C9—C10—C14 | −169.1 (3) | C11—C12—N4—Cu1iii | 175.3 (3) |
O1—C9—C10—C14 | 6.8 (5) | C18—C19—N5—C15 | −1.3 (5) |
C14—C10—C11—C12 | 1.8 (5) | C18—C19—N5—Cu1 | 179.3 (3) |
C9—C10—C11—C12 | −176.4 (3) | C16—C15—N5—C19 | 0.6 (5) |
C10—C11—C12—N4 | 1.6 (5) | C16—C15—N5—Cu1 | −180.0 (3) |
N4—C13—C14—C10 | 3.1 (5) | N1—Cu1—N5—C19 | 130.1 (3) |
C11—C10—C14—C13 | −4.0 (5) | N8ii—Cu1—N5—C19 | −47.5 (3) |
C9—C10—C14—C13 | 174.3 (3) | N4ii—Cu1—N5—C19 | −133.6 (3) |
N5—C15—C16—C17 | 0.6 (5) | O3—Cu1—N5—C19 | 38.7 (3) |
C15—C16—C17—C18 | −1.1 (5) | N1—Cu1—N5—C15 | −49.3 (3) |
C15—C16—C17—C20 | 176.9 (3) | N8ii—Cu1—N5—C15 | 133.1 (3) |
C16—C17—C18—C19 | 0.4 (6) | N4ii—Cu1—N5—C15 | 47.1 (5) |
C20—C17—C18—C19 | −177.5 (3) | O3—Cu1—N5—C15 | −140.6 (3) |
C17—C18—C19—N5 | 0.8 (6) | O2—C20—N6—N7 | −0.2 (4) |
C18—C17—C20—N6 | 7.2 (6) | C17—C20—N6—N7 | 177.3 (4) |
C16—C17—C20—N6 | −170.8 (4) | O2—C21—N7—N6 | −0.5 (4) |
C18—C17—C20—O2 | −175.4 (4) | S2—C21—N7—N6 | 179.1 (3) |
C16—C17—C20—O2 | 6.6 (5) | O2—C21—N7—C22 | −177.8 (3) |
N7—C22—C23—C24 | −60.4 (4) | S2—C21—N7—C22 | 1.7 (6) |
C22—C23—C24—C28 | −62.4 (4) | C20—N6—N7—C21 | 0.5 (4) |
C22—C23—C24—C25 | 114.4 (4) | C20—N6—N7—C22 | 178.0 (3) |
C28—C24—C25—C26 | 0.2 (5) | C23—C22—N7—C21 | 105.6 (4) |
C23—C24—C25—C26 | −176.7 (3) | C23—C22—N7—N6 | −71.5 (4) |
C24—C25—C26—N8 | 1.6 (6) | C28—C27—N8—C26 | 0.6 (5) |
N8—C27—C28—C24 | 1.1 (5) | C28—C27—N8—Cu1iii | −170.8 (3) |
C25—C24—C28—C27 | −1.4 (5) | C25—C26—N8—C27 | −1.9 (5) |
C23—C24—C28—C27 | 175.5 (3) | C25—C26—N8—Cu1iii | 170.1 (3) |
Cl3—C32—Cl4—Cl4i | −85 (3) | N3—C9—O1—C8 | −1.5 (4) |
C2—C1—N1—C5 | 1.0 (5) | C10—C9—O1—C8 | −177.8 (3) |
C2—C1—N1—Cu1 | −169.7 (3) | N2—C8—O1—C9 | 1.4 (4) |
C4—C5—N1—C1 | −2.2 (5) | S1—C8—O1—C9 | −179.9 (3) |
C4—C5—N1—Cu1 | 169.1 (3) | N6—C20—O2—C21 | −0.1 (4) |
N8ii—Cu1—N1—C1 | −146 (3) | C17—C20—O2—C21 | −177.8 (3) |
N4ii—Cu1—N1—C1 | −36.3 (3) | N7—C21—O2—C20 | 0.3 (4) |
N5—Cu1—N1—C1 | 120.3 (3) | S2—C21—O2—C20 | −179.3 (3) |
O3—Cu1—N1—C1 | −151.3 (3) | O5—N9—O3—Cu1 | −0.6 (5) |
N8ii—Cu1—N1—C5 | 43 (3) | O4—N9—O3—Cu1 | 175.6 (3) |
N4ii—Cu1—N1—C5 | 153.1 (3) | N1—Cu1—O3—N9 | 81.8 (3) |
N5—Cu1—N1—C5 | −50.3 (3) | N8ii—Cu1—O3—N9 | −97.9 (3) |
O3—Cu1—N1—C5 | 38.1 (3) | N4ii—Cu1—O3—N9 | −13.0 (3) |
O1—C8—N2—N3 | −1.0 (4) | N5—Cu1—O3—N9 | 170.4 (3) |
S1—C8—N2—N3 | −179.5 (3) |
Symmetry codes: (i) −x+2, −y, −z; (ii) x−1, y, z; (iii) x+1, y, z. |
Experimental details
(I) | (II) | |
Crystal data | ||
Chemical formula | [Zn2(NO3)4(C14H12N4OS)2] | [Cu(NO3)(C14H12N4OS)2]NO3·1.5C2H3N·1.5CH2Cl2 |
Mr | 947.45 | 945.20 |
Crystal system, space group | Monoclinic, P21/n | Triclinic, P1 |
Temperature (K) | 298 | 123 |
a, b, c (Å) | 7.8239 (17), 11.033 (2), 21.677 (4) | 12.012 (6), 13.225 (7), 14.402 (7) |
α, β, γ (°) | 90, 98.125 (4), 90 | 99.751 (7), 110.223 (7), 106.204 (7) |
V (Å3) | 1852.4 (7) | 1969.8 (17) |
Z | 2 | 2 |
Radiation type | Mo Kα | Mo Kα |
µ (mm−1) | 1.49 | 0.93 |
Crystal size (mm) | 0.40 × 0.20 × 0.20 | 0.26 × 0.20 × 0.10 |
Data collection | ||
Diffractometer | Bruker SMART CCD area-detector diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2003) | Multi-scan (SADABS; Bruker, 2003) |
Tmin, Tmax | 0.587, 0.755 | 0.794, 0.913 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8960, 3451, 2477 | 10698, 10698, 8513 |
Rint | 0.046 | 0.000 |
(sin θ/λ)max (Å−1) | 0.606 | 0.617 |
Refinement | ||
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.112, 1.04 | 0.052, 0.170, 1.07 |
No. of reflections | 3451 | 10698 |
No. of parameters | 262 | 553 |
H-atom treatment | H-atom parameters constrained | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.42, −0.25 | 0.73, −0.49 |
Computer programs: SMART (Bruker, 2003), SAINT (Bruker, 2003), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
N1—Zn1i | 2.036 (3) | O3—Zn1 | 2.457 (3) |
N4—Zn1 | 2.043 (3) | O5—Zn1 | 2.018 (3) |
O2—Zn1 | 2.015 (3) | O6—Zn1 | 2.549 (3) |
Symmetry code: (i) −x+1, −y+2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5···O7ii | 0.93 | 2.48 | 3.201 (5) | 134.6 |
C11—H11···O4iii | 0.93 | 2.63 | 3.297 (5) | 129.4 |
Symmetry codes: (ii) x−3/2, −y+3/2, z−1/2; (iii) −x+3/2, y−1/2, −z+3/2. |
Cu1—N1 | 2.005 (3) | Cu1—N5 | 2.033 (3) |
Cu1—N8i | 2.006 (3) | Cu1—O3 | 2.259 (3) |
Cu1—N4i | 2.022 (3) |
Symmetry code: (i) x−1, y, z. |
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Polymeric metal–organic complexes have attracted considerable attention because of their fascinating topological structures (Eddaoudi et al., 2002; Chakrabary et al., 2011) and because they are functional materials with potential applications in the fields of gas storage (Rowsell & Yaghi, 2005; Ma & Zhou, 2010), host–guest chemistry (Yoshizawa et al., 2006), catalysis (Kim et al., 2010) and luminescence (Cui et al., 2012). It is well known that the selection of appropriate ligands as building blocks is a key point in the design and synthesis of functional coordination polymers. Although the principles for controlling the solid structures of the target products still need to be classified and established, many rational synthetic strategies have been put forward (Dong et al., 2007; Zhang et al., 2008). 1,3,4-Oxadiazole-2-thione is a potentially versatile ligand, because the electron-rich S atom may significantly influence the properties of the ligand. Thus, we have designed and synthesised a new bispyridyl ligand with a 1,3,4-oxadiazole ring-bridged 2-thione linker, namely 5-(pyridin-4-yl)-3-[2-(pyridin-4-yl)ethyl]-1,3,4-oxadiazole-2(3H)-thione (L), and used it to form the title ZnII and CuII complexes, [Zn2(NO3)4L2], (I), and {[Cu(NO3)L2]NO3.1.5CH3CN.1.5CH2Cl2}n, (II).
Compound (I) crystallizes in the monoclinic space group P21/n. The asymmetric unit contains one ZnII centre, one L ligand and two nitrate anions. Each ZnII centre has a {ZnN2O4} coordination environment consisting of two N atoms from two pyridyl groups and four O atoms from two nitrate anions (Fig. 1). Two bispyridyl ligands act as organic clips to bridge two ZnII centres into a binuclear metallocycle with an internal crystallographic centre of symmetry. The Zn1—N4 bond length of 2.042 (3) Å is almost the same as the Zn1—N1i bond length [2.036 (3) Å; symmetry code: (i) -x + 1, -y + 2, -z + 1]. The Zn1—O bond lengths range from 2.015 (3) to 2.549 (3) Å (Table 1), indicating the highly asymmetric nature of the nitrate chelation.
The Zn—N bond lengths in (I) are shorter than that in the related complex {[Zn(NO3)2(L1)(H2O)2].2CH3CN}n [2.1350 (16) Å; L1 is 2,5-bis-(pyridin-4-yl)-1,3,4-oxadiazole; Dong et al.., 2003]. The same literature compound has a Zn-to-nitrate Zn—O distance of 2.1487 (13) Å, which lies between the short and long Zn1—O bond lengths observed for (I). Treating the metallocycle in (I) as a distorted rectangular ring gives side lengths that are approximately 9.56 and 7.06 Å, and a `diagonal' Zn···Zn distance of 10.484 Å. This is shorter than the Zn···Zn distance of 13.40 (3) Å in {[Zn(NO3)2(L1)(H2O)2].2CH3CN}n (Dong et al., 2003). The binuclear metallocycles of (I) are linked into a two-dimensional network parallel to the ac plane through C—H···O nonclassical hydrogen bonds. The hydrogen-bonding system involves C and H atoms of the pyridyl ring and the uncoordinated O atoms of the neighbouring nitrate anion (Fig. 2 and Table 2).
Compound (II) crystallizes in the triclinic space group P1. Compared with (I), (II) has a higher ratio of L to metal, and thus the asymmetric unit contains one CuII centre, two L ligands, one coordinated and one noncoordinated nitrate anion, and one and a half acetonitrile and one and a half dichloromethane solvent molecules. Each CuII centre lies in a {CuN4O} distorted square-pyramidal coordination environment, with the basal positions occupied by four pyridyl N atoms [N1, N5, N4i and N8i; symmetry code: (i) x - 1, y, z] from four individual L ligands and the apical position occupied by one O atom from the coordinated nitrate anion (Fig. 3). The Cu1—N bond lengths range from 2.004 (3) to 2.033 (3) Å (Table 3), and this range is in line with the values described for [Cu(L2)2(ClO4)2] [L2 is 2,5-bis(pyridin-4-yl)-1,3,4-oxadiazole; Dong et al., 2003] and [Cu(NO3)(L3)(CH3CN)]2 [L3 is 2,5-bis(pyridin-3-yl)-1,3,4-oxadiazole; Dong et al., 2003]. Similar to (I), (II) features a large M2L2 parallelogram-shaped ring, which can be approximated as having sides of length 9.96 and 6.26 Å and a shortest cross-ring Cu···Cu distance of 12.012 (6) Å. This is longer than the corresponding Zn···Zn distance observed in (I), but closer to the Cu···Cu distance [12.84 (3) Å] found in [Cu(hfacac)2(L3)] (hfacac is ????; Dong et al., 2003).
In the solid state, the CuII centres of (II) extend into polymeric one-dimensional double chains via bidentate bridging L ligands. These chains extend parallel to the crystallographic a direction (Fig. 4). There are two kinds of π–π interaction (centroid-to-centroid distances of 3.625 and 3.661 Å) between neighbouring 1,3,4-oxadiazole rings. The coordination chains in (II) are thus further linked into a higher-dimensional network via these π–π stacking interactions in the bc plane, as shown in Fig. 5. Finally, there are cross-shaped channels in (II). The guest entities, consisting of dichloromethane and acetonitrile solvent molecules and uncoordinated nitrate anions, are located in these channels, which run parallel to the crystallographic a axis (Fig. 6).
In summary, the semi-rigid L ligand can be used as a bidentate ligand to coordinate transition metal ions. With ZnII a dimeric metallocycle was formed, while with CuII a novel polymeric network was obtained, both based on such coordination. This study also demonstrates that π–π interactions can play an important role in constructing aggregate supramolecular compounds with oxadiazole species. We are currently extending this study by preparing new ligands of this type with different substituted functional groups. It is anticipated that this approach should be useful for constructing novel supramolecular compounds.