Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807023082/hb2408sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807023082/hb2408Isup2.hkl |
CCDC reference: 650689
The L ligand was synthesized according to the literature method (Dickeson & Summers, 1970). A N,N-dimethylacetamide solution (15 ml) of L (121 mg, 0.5 mmol) was mixed with an aqueous solution (6 ml) of ClCl2.2H2O (86 mg, 0.5 mmol) with stirring at 385 K. Then the 1,3-bdcH2 was added to the mixture with stirring. The resulting solution was filtered, the filtrate was allowed to stand in air at room temperature for two weeks, and blue crystals of (I) were obtained (yield 29% based on Cu).
All H atoms on C atoms were positioned geometrically (C—H = 0.93 Å) and refined as riding, with Uiso(H)=1.2Ueq(carrier). The water H-atoms were located in a difference Fourier map, and were refined with distance restraints of O–H = 0.85 (1) Å; Uiso was allowed to refine freely.
Recently, helical structures have received intense interest in coordination chemistry (Cai et al., 2006). It is well known that a bidentate organic acid ligand may be useful in the formation of helical chains in the presence of 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen). The N atoms from the bipy or phen ligand may occupy two coordination positions of central metals (Ren & Zhao, 2006). The additional coordination positions are available for the bidentate carboxylate ligands, leading to the formation of a helix (Yang et al., 2005).
We therefore selected benzene-1,3-dicarboxylic acid (1,3-bdcH2) as a bridging ligand and pyrazino[2,3-f][1,10]phenanthroline (L) as a secondary ligand, forming a the title compound, (I), a new helical Cu(II) coordination polymer, [Cu(1,3-bdc)(L)(H2O].DMA.H2O (DMA = N,N-dimethylacetamide), which is reported here.
Selected bond lengths and angles for (I) are given in Table 1. In (I) each CuII atom is five-coordinated by three O atoms from two monodentate 1,3-bdc ligands and one water molecule, and two N atoms from one chelating L ligand in a distorted square-pyramidal coordination sphere (Fig. 1). Two carboxylate O atoms (O2, O3) and two N atoms (N1, N2) form the equatorial plane, whereas the water molecule occupies the axial position with Cu1—O1w distance of 2.324 (4) Å.
The 1,3-bdc ligands linked the CuII atoms to form a one-dimensional helical chain structure (Fig. 2). The helical chain is decorated with L ligands, alternately at each side. Finally, O—H···O H-bonds complete the structure of (I) (Table 2).
One related helical coordination polymer, [Cu(1,4-bdc)(L)(H2O)], where 1,4-bdc is the benzene-1,4-dicarboxylate dianion, has been reported. In this compound, the CuII atom is five-coordinated and exhibits a distorted square-pyramidal coordination environment. The CuII atoms are bridged by the 1,4-bdc ligands to form a one-dimensional helical chain structure (Zhang et al., 2007).
For related literature, see: Cai et al. (2006); Dickeson & Summers (1970); Ren & Zhao (2006); Yang et al. (2005).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell refinement: PROCESS-AUTO; data reduction: PROCESS-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL-Plus (Sheldrick, 1990); software used to prepare material for publication: SHELXL97.
[Cu(C8H4O4)(C14H8N4)(H2O)]·C4H9NO·H2O | F(000) = 1204 |
Mr = 583.05 | Dx = 1.516 Mg m−3 |
Monoclinic, P2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yc | Cell parameters from 17473 reflections |
a = 14.829 (3) Å | θ = 3.2–27.5° |
b = 7.2111 (14) Å | µ = 0.91 mm−1 |
c = 23.976 (5) Å | T = 293 K |
β = 95.00 (3)° | Block, blue |
V = 2554.1 (9) Å3 | 0.33 × 0.31 × 0.30 mm |
Z = 4 |
Rigaku R-AXIS RAPID diffractometer | 5813 independent reflections |
Radiation source: rotating anode | 4102 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.061 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.5°, θmin = 3.1° |
ω scans | h = −19→18 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −9→9 |
Tmin = 0.733, Tmax = 0.766 | l = −31→31 |
23862 measured reflections |
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)] = 0.068 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.184 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0676P)2 + 7.6293P] where P = (Fo2 + 2Fc2)/3 |
5813 reflections | (Δ/σ)max < 0.001 |
373 parameters | Δρmax = 1.09 e Å−3 |
7 restraints | Δρmin = −0.43 e Å−3 |
[Cu(C8H4O4)(C14H8N4)(H2O)]·C4H9NO·H2O | V = 2554.1 (9) Å3 |
Mr = 583.05 | Z = 4 |
Monoclinic, P2/c | Mo Kα radiation |
a = 14.829 (3) Å | µ = 0.91 mm−1 |
b = 7.2111 (14) Å | T = 293 K |
c = 23.976 (5) Å | 0.33 × 0.31 × 0.30 mm |
β = 95.00 (3)° |
Rigaku R-AXIS RAPID diffractometer | 5813 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 4102 reflections with I > 2σ(I) |
Tmin = 0.733, Tmax = 0.766 | Rint = 0.061 |
23862 measured reflections |
R[F2 > 2σ(F2)] = 0.068 | 7 restraints |
wR(F2) = 0.184 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | Δρmax = 1.09 e Å−3 |
5813 reflections | Δρmin = −0.43 e Å−3 |
373 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s 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 | 0.4129 (3) | 0.2052 (8) | 0.5417 (2) | 0.0440 (12) | |
H1 | 0.4376 | 0.1590 | 0.5759 | 0.053* | |
C2 | 0.4719 (3) | 0.2530 (8) | 0.5017 (2) | 0.0497 (13) | |
H2 | 0.5342 | 0.2429 | 0.5097 | 0.060* | |
C3 | 0.4370 (3) | 0.3140 (7) | 0.4510 (2) | 0.0440 (11) | |
H3 | 0.4752 | 0.3432 | 0.4235 | 0.053* | |
C4 | 0.3426 (3) | 0.3333 (6) | 0.43985 (18) | 0.0357 (10) | |
C5 | 0.2887 (3) | 0.2852 (6) | 0.48253 (17) | 0.0314 (9) | |
C6 | 0.1916 (3) | 0.2943 (6) | 0.47436 (17) | 0.0297 (9) | |
C7 | 0.0563 (3) | 0.2370 (7) | 0.5113 (2) | 0.0424 (11) | |
H7 | 0.0246 | 0.1983 | 0.5411 | 0.051* | |
C8 | 0.0072 (3) | 0.2930 (8) | 0.4617 (2) | 0.0475 (12) | |
H8 | −0.0558 | 0.2909 | 0.4587 | 0.057* | |
C9 | 0.0525 (3) | 0.3505 (7) | 0.4178 (2) | 0.0422 (11) | |
H9 | 0.0208 | 0.3879 | 0.3845 | 0.051* | |
C10 | 0.1472 (3) | 0.3528 (6) | 0.42319 (18) | 0.0339 (9) | |
C11 | 0.2981 (3) | 0.3891 (6) | 0.38611 (18) | 0.0376 (10) | |
C12 | 0.2044 (3) | 0.4006 (6) | 0.37806 (17) | 0.0346 (10) | |
C13 | 0.2132 (4) | 0.4844 (7) | 0.2878 (2) | 0.0522 (14) | |
H13 | 0.1863 | 0.5186 | 0.2528 | 0.063* | |
C14 | 0.3063 (5) | 0.4713 (8) | 0.2957 (2) | 0.0570 (15) | |
H14 | 0.3395 | 0.4941 | 0.2652 | 0.068* | |
C15 | 0.3677 (3) | 0.1853 (8) | 0.67698 (17) | 0.0414 (12) | |
C16 | 0.4361 (3) | 0.0762 (7) | 0.71521 (17) | 0.0361 (10) | |
C17 | 0.5000 | 0.1725 (9) | 0.7500 | 0.0340 (13) | |
H17 | 0.5000 | 0.3015 | 0.7500 | 0.041* | |
C18 | 0.4360 (3) | −0.1149 (8) | 0.7155 (2) | 0.0456 (12) | |
H18 | 0.3931 | −0.1798 | 0.6925 | 0.055* | |
C19 | 0.5000 | −0.2104 (12) | 0.7500 | 0.058 (2) | |
H19 | 0.5000 | −0.3394 | 0.7500 | 0.070* | |
C20 | 0.0931 (3) | 0.2029 (7) | 0.66650 (17) | 0.0352 (10) | |
C21 | 0.0441 (3) | 0.0973 (6) | 0.70954 (16) | 0.0319 (9) | |
C22 | 0.0000 | 0.1949 (9) | 0.7500 | 0.0318 (13) | |
H22 | 0.0000 | 0.3239 | 0.7500 | 0.038* | |
C23 | 0.0432 (3) | −0.0947 (7) | 0.71019 (19) | 0.0407 (11) | |
H23 | 0.0721 | −0.1597 | 0.6834 | 0.049* | |
C24 | 0.0000 | −0.1916 (10) | 0.7500 | 0.0461 (17) | |
H24 | 0.0000 | −0.3206 | 0.7500 | 0.055* | |
C25 | 0.2265 (4) | −0.0370 (9) | 0.3096 (2) | 0.0595 (16) | |
H25A | 0.2479 | 0.0777 | 0.2953 | 0.089* | |
H25B | 0.1640 | −0.0243 | 0.3165 | 0.089* | |
H25C | 0.2326 | −0.1338 | 0.2827 | 0.089* | |
C26 | 0.3805 (4) | −0.0846 (9) | 0.3637 (2) | 0.0552 (14) | |
H26A | 0.3996 | −0.0077 | 0.3343 | 0.083* | |
H26B | 0.4014 | −0.2091 | 0.3589 | 0.083* | |
H26C | 0.4055 | −0.0376 | 0.3992 | 0.083* | |
C27 | 0.2456 (5) | −0.1394 (8) | 0.4071 (3) | 0.0586 (15) | |
C28 | 0.1422 (3) | −0.1422 (8) | 0.4065 (3) | 0.0530 (13) | |
H28A | 0.1174 | −0.2215 | 0.3768 | 0.080* | |
H28B | 0.1191 | −0.0188 | 0.4005 | 0.080* | |
H28C | 0.1253 | −0.1880 | 0.4417 | 0.080* | |
N1 | 0.1455 (2) | 0.2367 (5) | 0.51787 (14) | 0.0328 (8) | |
N2 | 0.3234 (2) | 0.2223 (6) | 0.53358 (15) | 0.0347 (8) | |
N3 | 0.3510 (3) | 0.4285 (6) | 0.34392 (18) | 0.0497 (11) | |
N4 | 0.1615 (3) | 0.4498 (6) | 0.32826 (16) | 0.0465 (10) | |
N5 | 0.2799 (3) | −0.0837 (7) | 0.36185 (19) | 0.0558 (12) | |
O1 | 0.3691 (3) | 0.3545 (6) | 0.67766 (17) | 0.0612 (11) | |
O2 | 0.3140 (2) | 0.0834 (6) | 0.64574 (14) | 0.0533 (10) | |
O1W | 0.2181 (3) | −0.1484 (5) | 0.55112 (14) | 0.0475 (9) | |
HW11 | 0.241 (4) | −0.181 (7) | 0.5213 (13) | 0.064 (19)* | |
HW12 | 0.234 (3) | −0.239 (5) | 0.5731 (15) | 0.044 (15)* | |
O3 | 0.1262 (2) | 0.1001 (6) | 0.63021 (13) | 0.0490 (9) | |
O2W | 0.2320 (3) | 0.5306 (7) | 0.61437 (18) | 0.0654 (12) | |
HW21 | 0.186 (3) | 0.510 (12) | 0.632 (3) | 0.11 (3)* | |
HW22 | 0.276 (3) | 0.545 (7) | 0.640 (3) | 0.14 (4)* | |
O4 | 0.0964 (3) | 0.3738 (5) | 0.66852 (15) | 0.0518 (9) | |
O5 | 0.2951 (3) | −0.1872 (6) | 0.45047 (14) | 0.0563 (10) | |
Cu1 | 0.22665 (4) | 0.15296 (9) | 0.58553 (2) | 0.03622 (19) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.035 (2) | 0.057 (3) | 0.039 (2) | 0.001 (2) | −0.004 (2) | 0.000 (2) |
C2 | 0.031 (2) | 0.066 (4) | 0.052 (3) | −0.003 (2) | 0.003 (2) | −0.001 (3) |
C3 | 0.042 (3) | 0.046 (3) | 0.046 (3) | −0.007 (2) | 0.016 (2) | 0.001 (2) |
C4 | 0.038 (2) | 0.035 (2) | 0.034 (2) | −0.005 (2) | 0.0055 (18) | −0.0019 (19) |
C5 | 0.033 (2) | 0.033 (2) | 0.029 (2) | −0.0013 (18) | 0.0036 (17) | −0.0034 (17) |
C6 | 0.035 (2) | 0.026 (2) | 0.0284 (19) | 0.0021 (17) | 0.0013 (17) | −0.0028 (16) |
C7 | 0.034 (2) | 0.054 (3) | 0.040 (2) | 0.000 (2) | 0.006 (2) | 0.005 (2) |
C8 | 0.027 (2) | 0.062 (3) | 0.053 (3) | 0.003 (2) | 0.000 (2) | 0.002 (3) |
C9 | 0.041 (2) | 0.044 (3) | 0.039 (2) | 0.007 (2) | −0.006 (2) | −0.001 (2) |
C10 | 0.041 (2) | 0.030 (2) | 0.031 (2) | 0.0021 (19) | −0.0005 (18) | −0.0013 (18) |
C11 | 0.050 (3) | 0.032 (2) | 0.031 (2) | −0.002 (2) | 0.010 (2) | 0.0023 (18) |
C12 | 0.047 (3) | 0.029 (2) | 0.028 (2) | 0.0007 (19) | 0.0039 (18) | 0.0008 (17) |
C13 | 0.082 (4) | 0.044 (3) | 0.029 (2) | 0.007 (3) | 0.002 (2) | 0.010 (2) |
C14 | 0.090 (5) | 0.045 (3) | 0.039 (3) | 0.005 (3) | 0.023 (3) | 0.009 (2) |
C15 | 0.038 (2) | 0.065 (4) | 0.0213 (19) | 0.000 (2) | 0.0000 (18) | 0.001 (2) |
C16 | 0.032 (2) | 0.050 (3) | 0.026 (2) | −0.002 (2) | 0.0028 (17) | −0.0013 (19) |
C17 | 0.035 (3) | 0.042 (4) | 0.026 (3) | 0.000 | 0.005 (2) | 0.000 |
C18 | 0.041 (3) | 0.052 (3) | 0.042 (3) | −0.008 (2) | −0.007 (2) | −0.006 (2) |
C19 | 0.049 (4) | 0.053 (5) | 0.071 (5) | 0.000 | −0.004 (4) | 0.000 |
C20 | 0.031 (2) | 0.050 (3) | 0.0251 (19) | 0.002 (2) | 0.0021 (17) | −0.0001 (19) |
C21 | 0.030 (2) | 0.043 (2) | 0.0222 (18) | −0.0035 (18) | 0.0014 (16) | −0.0005 (17) |
C22 | 0.033 (3) | 0.040 (3) | 0.023 (3) | 0.000 | 0.002 (2) | 0.000 |
C23 | 0.047 (3) | 0.044 (3) | 0.032 (2) | 0.005 (2) | 0.008 (2) | −0.008 (2) |
C24 | 0.062 (5) | 0.030 (4) | 0.047 (4) | 0.000 | 0.007 (3) | 0.000 |
C25 | 0.080 (4) | 0.052 (3) | 0.044 (3) | 0.000 (3) | −0.014 (3) | 0.010 (3) |
C26 | 0.044 (3) | 0.069 (4) | 0.055 (3) | −0.003 (3) | 0.017 (2) | −0.012 (3) |
C27 | 0.073 (4) | 0.045 (3) | 0.061 (3) | −0.003 (3) | 0.017 (3) | −0.014 (3) |
C28 | 0.037 (3) | 0.055 (3) | 0.068 (3) | 0.001 (2) | 0.010 (2) | −0.009 (3) |
N1 | 0.0294 (18) | 0.040 (2) | 0.0293 (17) | 0.0012 (16) | 0.0047 (14) | −0.0005 (15) |
N2 | 0.0292 (18) | 0.045 (2) | 0.0298 (17) | −0.0003 (16) | 0.0007 (14) | −0.0038 (16) |
N3 | 0.059 (3) | 0.050 (3) | 0.042 (2) | 0.002 (2) | 0.016 (2) | 0.008 (2) |
N4 | 0.060 (3) | 0.046 (2) | 0.033 (2) | 0.007 (2) | 0.0010 (19) | 0.0024 (18) |
N5 | 0.060 (3) | 0.062 (3) | 0.046 (2) | 0.000 (2) | 0.004 (2) | 0.000 (2) |
O1 | 0.065 (3) | 0.056 (3) | 0.059 (2) | 0.015 (2) | −0.018 (2) | −0.006 (2) |
O2 | 0.052 (2) | 0.068 (3) | 0.0364 (17) | −0.0087 (19) | −0.0164 (16) | 0.0066 (17) |
O1W | 0.060 (2) | 0.050 (2) | 0.0331 (17) | 0.0020 (18) | 0.0091 (16) | 0.0023 (16) |
O3 | 0.050 (2) | 0.069 (2) | 0.0303 (16) | −0.0023 (18) | 0.0203 (15) | −0.0047 (16) |
O2W | 0.061 (3) | 0.076 (3) | 0.060 (2) | −0.001 (2) | 0.008 (2) | 0.033 (2) |
O4 | 0.059 (2) | 0.047 (2) | 0.052 (2) | −0.0009 (18) | 0.0232 (18) | 0.0075 (17) |
O5 | 0.060 (2) | 0.075 (3) | 0.0345 (17) | 0.006 (2) | 0.0035 (16) | 0.0069 (18) |
Cu1 | 0.0312 (3) | 0.0564 (4) | 0.0209 (2) | 0.0002 (3) | 0.00140 (19) | −0.0004 (2) |
C1—N2 | 1.331 (6) | C18—H18 | 0.9300 |
C1—C2 | 1.397 (7) | C19—C18i | 1.387 (7) |
C1—H1 | 0.9300 | C19—H19 | 0.9300 |
C2—C3 | 1.351 (7) | C20—O4 | 1.234 (6) |
C2—H2 | 0.9300 | C20—O3 | 1.274 (6) |
C3—C4 | 1.408 (7) | C20—C21 | 1.518 (6) |
C3—H3 | 0.9300 | C21—C23 | 1.385 (7) |
C4—C5 | 1.396 (6) | C21—C22 | 1.405 (5) |
C4—C11 | 1.453 (6) | C22—C21ii | 1.405 (5) |
C5—N2 | 1.363 (5) | C22—H22 | 0.9300 |
C5—C6 | 1.437 (6) | C23—C24 | 1.384 (6) |
C6—N1 | 1.361 (5) | C23—H23 | 0.9300 |
C6—C10 | 1.406 (6) | C24—C23ii | 1.384 (6) |
C7—N1 | 1.318 (6) | C24—H24 | 0.9300 |
C7—C8 | 1.400 (7) | C25—N5 | 1.462 (7) |
C7—H7 | 0.9300 | C25—H25A | 0.9600 |
C8—C9 | 1.362 (7) | C25—H25B | 0.9600 |
C8—H8 | 0.9300 | C25—H25C | 0.9600 |
C9—C10 | 1.399 (7) | C26—N5 | 1.489 (7) |
C9—H9 | 0.9300 | C26—H26A | 0.9600 |
C10—C12 | 1.473 (6) | C26—H26B | 0.9600 |
C11—N3 | 1.363 (6) | C26—H26C | 0.9600 |
C11—C12 | 1.388 (7) | C27—O5 | 1.267 (7) |
C12—N4 | 1.351 (6) | C27—N5 | 1.302 (7) |
C13—N4 | 1.311 (7) | C27—C28 | 1.531 (8) |
C13—C14 | 1.381 (9) | C28—H28A | 0.9600 |
C13—H13 | 0.9300 | C28—H28B | 0.9600 |
C14—N3 | 1.318 (7) | C28—H28C | 0.9600 |
C14—H14 | 0.9300 | Cu1—N1 | 2.026 (4) |
C15—O1 | 1.221 (7) | Cu1—N2 | 2.043 (4) |
C15—O2 | 1.277 (6) | Cu1—O2 | 1.920 (3) |
C15—C16 | 1.525 (7) | Cu1—O3 | 1.947 (3) |
C16—C18 | 1.378 (7) | Cu1—O1W | 2.324 (4) |
C16—C17 | 1.392 (6) | O1W—HW11 | 0.85 (4) |
C17—C16i | 1.392 (6) | O1W—HW12 | 0.86 (4) |
C17—H17 | 0.9300 | O2W—HW21 | 0.85 (5) |
C18—C19 | 1.387 (7) | O2W—HW22 | 0.86 (6) |
N2—C1—C2 | 123.5 (5) | C23—C21—C22 | 119.2 (4) |
N2—C1—H1 | 118.3 | C23—C21—C20 | 121.0 (4) |
C2—C1—H1 | 118.3 | C22—C21—C20 | 119.8 (4) |
C3—C2—C1 | 119.0 (5) | C21—C22—C21ii | 119.9 (6) |
C3—C2—H2 | 120.5 | C21—C22—H22 | 120.1 |
C1—C2—H2 | 120.5 | C21ii—C22—H22 | 120.1 |
C2—C3—C4 | 119.9 (4) | C24—C23—C21 | 121.2 (5) |
C2—C3—H3 | 120.0 | C24—C23—H23 | 119.4 |
C4—C3—H3 | 120.0 | C21—C23—H23 | 119.4 |
C5—C4—C3 | 117.3 (4) | C23ii—C24—C23 | 119.4 (6) |
C5—C4—C11 | 118.3 (4) | C23ii—C24—H24 | 120.3 |
C3—C4—C11 | 124.3 (4) | C23—C24—H24 | 120.3 |
N2—C5—C4 | 123.0 (4) | N5—C25—H25A | 109.5 |
N2—C5—C6 | 115.6 (4) | N5—C25—H25B | 109.5 |
C4—C5—C6 | 121.3 (4) | H25A—C25—H25B | 109.5 |
N1—C6—C10 | 122.2 (4) | N5—C25—H25C | 109.5 |
N1—C6—C5 | 116.5 (4) | H25A—C25—H25C | 109.5 |
C10—C6—C5 | 121.3 (4) | H25B—C25—H25C | 109.5 |
N1—C7—C8 | 123.0 (4) | N5—C26—H26A | 109.5 |
N1—C7—H7 | 118.5 | N5—C26—H26B | 109.5 |
C8—C7—H7 | 118.5 | H26A—C26—H26B | 109.5 |
C9—C8—C7 | 119.3 (4) | N5—C26—H26C | 109.5 |
C9—C8—H8 | 120.3 | H26A—C26—H26C | 109.5 |
C7—C8—H8 | 120.3 | H26B—C26—H26C | 109.5 |
C8—C9—C10 | 119.4 (4) | O5—C27—N5 | 121.8 (6) |
C8—C9—H9 | 120.3 | O5—C27—C28 | 120.8 (5) |
C10—C9—H9 | 120.3 | N5—C27—C28 | 117.3 (6) |
C9—C10—C6 | 117.9 (4) | C27—C28—H28A | 109.5 |
C9—C10—C12 | 124.9 (4) | C27—C28—H28B | 109.5 |
C6—C10—C12 | 117.1 (4) | H28A—C28—H28B | 109.5 |
N3—C11—C12 | 121.2 (4) | C27—C28—H28C | 109.5 |
N3—C11—C4 | 118.0 (4) | H28A—C28—H28C | 109.5 |
C12—C11—C4 | 120.8 (4) | H28B—C28—H28C | 109.5 |
N4—C12—C11 | 121.8 (4) | C7—N1—C6 | 118.3 (4) |
N4—C12—C10 | 117.0 (4) | C7—N1—Cu1 | 128.0 (3) |
C11—C12—C10 | 121.1 (4) | C6—N1—Cu1 | 113.7 (3) |
N4—C13—C14 | 121.8 (5) | C1—N2—C5 | 117.2 (4) |
N4—C13—H13 | 119.1 | C1—N2—Cu1 | 129.2 (3) |
C14—C13—H13 | 119.1 | C5—N2—Cu1 | 113.5 (3) |
N3—C14—C13 | 123.8 (5) | C14—N3—C11 | 115.0 (5) |
N3—C14—H14 | 118.1 | C13—N4—C12 | 116.3 (5) |
C13—C14—H14 | 118.1 | C27—N5—C25 | 124.3 (6) |
O1—C15—O2 | 126.3 (5) | C27—N5—C26 | 115.9 (5) |
O1—C15—C16 | 119.9 (4) | C25—N5—C26 | 119.6 (5) |
O2—C15—C16 | 113.8 (5) | C15—O2—Cu1 | 129.5 (4) |
C18—C16—C17 | 119.8 (5) | Cu1—O1W—HW11 | 123 (4) |
C18—C16—C15 | 121.2 (4) | Cu1—O1W—HW12 | 119 (3) |
C17—C16—C15 | 119.0 (5) | HW11—O1W—HW12 | 101 (3) |
C16—C17—C16i | 120.2 (6) | C20—O3—Cu1 | 128.4 (3) |
C16—C17—H17 | 119.9 | HW21—O2W—HW22 | 105 (3) |
C16i—C17—H17 | 119.9 | O2—Cu1—O3 | 91.92 (16) |
C16—C18—C19 | 119.9 (5) | O2—Cu1—N1 | 174.00 (16) |
C16—C18—H18 | 120.0 | O3—Cu1—N1 | 93.99 (15) |
C19—C18—H18 | 120.0 | O2—Cu1—N2 | 93.37 (16) |
C18i—C19—C18 | 120.4 (8) | O3—Cu1—N2 | 174.49 (15) |
C18i—C19—H19 | 119.8 | N1—Cu1—N2 | 80.69 (14) |
C18—C19—H19 | 119.8 | O2—Cu1—O1W | 92.00 (16) |
O4—C20—O3 | 126.3 (4) | O3—Cu1—O1W | 89.51 (15) |
O4—C20—C21 | 119.6 (4) | N1—Cu1—O1W | 89.09 (14) |
O3—C20—C21 | 114.1 (4) | N2—Cu1—O1W | 91.83 (14) |
N2—C1—C2—C3 | −2.4 (9) | C22—C21—C23—C24 | −0.2 (6) |
C1—C2—C3—C4 | 1.7 (8) | C20—C21—C23—C24 | 178.8 (3) |
C2—C3—C4—C5 | −0.7 (7) | C21—C23—C24—C23ii | 0.1 (3) |
C2—C3—C4—C11 | −177.0 (5) | C8—C7—N1—C6 | 0.3 (7) |
C3—C4—C5—N2 | 0.2 (7) | C8—C7—N1—Cu1 | −177.9 (4) |
C11—C4—C5—N2 | 176.7 (4) | C10—C6—N1—C7 | −0.2 (6) |
C3—C4—C5—C6 | −177.9 (4) | C5—C6—N1—C7 | −177.8 (4) |
C11—C4—C5—C6 | −1.4 (7) | C10—C6—N1—Cu1 | 178.2 (3) |
N2—C5—C6—N1 | −1.0 (6) | C5—C6—N1—Cu1 | 0.7 (5) |
C4—C5—C6—N1 | 177.2 (4) | C2—C1—N2—C5 | 1.9 (8) |
N2—C5—C6—C10 | −178.6 (4) | C2—C1—N2—Cu1 | 177.8 (4) |
C4—C5—C6—C10 | −0.3 (7) | C4—C5—N2—C1 | −0.8 (7) |
N1—C7—C8—C9 | −0.1 (8) | C6—C5—N2—C1 | 177.4 (4) |
C7—C8—C9—C10 | −0.1 (8) | C4—C5—N2—Cu1 | −177.4 (3) |
C8—C9—C10—C6 | 0.2 (7) | C6—C5—N2—Cu1 | 0.8 (5) |
C8—C9—C10—C12 | 176.0 (5) | C13—C14—N3—C11 | 2.7 (8) |
N1—C6—C10—C9 | 0.0 (7) | C12—C11—N3—C14 | −2.1 (7) |
C5—C6—C10—C9 | 177.4 (4) | C4—C11—N3—C14 | 177.5 (5) |
N1—C6—C10—C12 | −176.2 (4) | C14—C13—N4—C12 | −0.1 (8) |
C5—C6—C10—C12 | 1.2 (6) | C11—C12—N4—C13 | 0.6 (7) |
C5—C4—C11—N3 | −177.4 (4) | C10—C12—N4—C13 | −177.2 (4) |
C3—C4—C11—N3 | −1.2 (7) | O5—C27—N5—C25 | 176.3 (5) |
C5—C4—C11—C12 | 2.2 (7) | C28—C27—N5—C25 | −4.6 (8) |
C3—C4—C11—C12 | 178.4 (5) | O5—C27—N5—C26 | 1.5 (8) |
N3—C11—C12—N4 | 0.5 (7) | C28—C27—N5—C26 | −179.4 (5) |
C4—C11—C12—N4 | −179.1 (4) | O1—C15—O2—Cu1 | 6.5 (8) |
N3—C11—C12—C10 | 178.2 (4) | C16—C15—O2—Cu1 | −172.2 (3) |
C4—C11—C12—C10 | −1.3 (7) | O4—C20—O3—Cu1 | 25.4 (7) |
C9—C10—C12—N4 | 1.6 (7) | C21—C20—O3—Cu1 | −156.0 (3) |
C6—C10—C12—N4 | 177.5 (4) | C15—O2—Cu1—O3 | −107.8 (4) |
C9—C10—C12—C11 | −176.2 (5) | C15—O2—Cu1—N2 | 70.6 (4) |
C6—C10—C12—C11 | −0.4 (6) | C15—O2—Cu1—O1W | 162.6 (4) |
N4—C13—C14—N3 | −1.8 (9) | C20—O3—Cu1—O2 | 82.1 (4) |
O1—C15—C16—C18 | 179.8 (5) | C20—O3—Cu1—N1 | −96.8 (4) |
O2—C15—C16—C18 | −1.4 (6) | C20—O3—Cu1—O1W | 174.1 (4) |
O1—C15—C16—C17 | −0.7 (6) | C7—N1—Cu1—O3 | −3.4 (4) |
O2—C15—C16—C17 | 178.0 (4) | C6—N1—Cu1—O3 | 178.4 (3) |
C18—C16—C17—C16i | 0.3 (3) | C7—N1—Cu1—N2 | 178.1 (4) |
C15—C16—C17—C16i | −179.2 (4) | C6—N1—Cu1—N2 | −0.2 (3) |
C17—C16—C18—C19 | −0.5 (7) | C7—N1—Cu1—O1W | 86.1 (4) |
C15—C16—C18—C19 | 178.9 (4) | C6—N1—Cu1—O1W | −92.2 (3) |
C16—C18—C19—C18i | 0.3 (3) | C1—N2—Cu1—O2 | 4.4 (5) |
O4—C20—C21—C23 | −176.6 (5) | C5—N2—Cu1—O2 | −179.4 (3) |
O3—C20—C21—C23 | 4.6 (6) | C1—N2—Cu1—N1 | −176.4 (5) |
O4—C20—C21—C22 | 2.4 (6) | C5—N2—Cu1—N1 | −0.3 (3) |
O3—C20—C21—C22 | −176.4 (3) | C1—N2—Cu1—O1W | −87.7 (4) |
C23—C21—C22—C21ii | 0.1 (3) | C5—N2—Cu1—O1W | 88.4 (3) |
C20—C21—C22—C21ii | −178.9 (4) |
Symmetry codes: (i) −x+1, y, −z+3/2; (ii) −x, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—HW12···O2Wiii | 0.86 (4) | 1.93 (2) | 2.765 (6) | 162 (5) |
O1W—HW11···O5 | 0.85 (4) | 1.94 (2) | 2.772 (5) | 165 (5) |
O2W—HW22···O1 | 0.86 (6) | 2.10 (4) | 2.740 (6) | 131 (4) |
O2W—HW21···O4 | 0.85 (4) | 1.92 (4) | 2.732 (6) | 159 (9) |
Symmetry code: (iii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C8H4O4)(C14H8N4)(H2O)]·C4H9NO·H2O |
Mr | 583.05 |
Crystal system, space group | Monoclinic, P2/c |
Temperature (K) | 293 |
a, b, c (Å) | 14.829 (3), 7.2111 (14), 23.976 (5) |
β (°) | 95.00 (3) |
V (Å3) | 2554.1 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.91 |
Crystal size (mm) | 0.33 × 0.31 × 0.30 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.733, 0.766 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 23862, 5813, 4102 |
Rint | 0.061 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.068, 0.184, 1.07 |
No. of reflections | 5813 |
No. of parameters | 373 |
No. of restraints | 7 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 1.09, −0.43 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), PROCESS-AUTO, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL-Plus (Sheldrick, 1990), SHELXL97.
Cu1—N1 | 2.026 (4) | Cu1—O3 | 1.947 (3) |
Cu1—N2 | 2.043 (4) | Cu1—O1W | 2.324 (4) |
Cu1—O2 | 1.920 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—HW12···O2Wi | 0.86 (4) | 1.93 (2) | 2.765 (6) | 162 (5) |
O1W—HW11···O5 | 0.85 (4) | 1.94 (2) | 2.772 (5) | 165 (5) |
O2W—HW22···O1 | 0.86 (6) | 2.10 (4) | 2.740 (6) | 131 (4) |
O2W—HW21···O4 | 0.85 (4) | 1.92 (4) | 2.732 (6) | 159 (9) |
Symmetry code: (i) x, y−1, z. |
Recently, helical structures have received intense interest in coordination chemistry (Cai et al., 2006). It is well known that a bidentate organic acid ligand may be useful in the formation of helical chains in the presence of 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen). The N atoms from the bipy or phen ligand may occupy two coordination positions of central metals (Ren & Zhao, 2006). The additional coordination positions are available for the bidentate carboxylate ligands, leading to the formation of a helix (Yang et al., 2005).
We therefore selected benzene-1,3-dicarboxylic acid (1,3-bdcH2) as a bridging ligand and pyrazino[2,3-f][1,10]phenanthroline (L) as a secondary ligand, forming a the title compound, (I), a new helical Cu(II) coordination polymer, [Cu(1,3-bdc)(L)(H2O].DMA.H2O (DMA = N,N-dimethylacetamide), which is reported here.
Selected bond lengths and angles for (I) are given in Table 1. In (I) each CuII atom is five-coordinated by three O atoms from two monodentate 1,3-bdc ligands and one water molecule, and two N atoms from one chelating L ligand in a distorted square-pyramidal coordination sphere (Fig. 1). Two carboxylate O atoms (O2, O3) and two N atoms (N1, N2) form the equatorial plane, whereas the water molecule occupies the axial position with Cu1—O1w distance of 2.324 (4) Å.
The 1,3-bdc ligands linked the CuII atoms to form a one-dimensional helical chain structure (Fig. 2). The helical chain is decorated with L ligands, alternately at each side. Finally, O—H···O H-bonds complete the structure of (I) (Table 2).