Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807053007/bg2121sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807053007/bg2121Isup2.hkl |
CCDC reference: 667256
A mixture of CuCl2.2H2O (86.0 mg, 0.5 mmol) and NaOH (40 mg, 1 mmol) in 20 ml water was stirred for 10 min at room temperature, then the Cu(OH)2 solid was filtered. p-HMB (152.0 mg, 1 mmol) was added to the Cu(OH)2 suspension in water with constant stirring for 1 h and a blue precipitate was obtained. It was filtered off and washed with water. Then BIE (103.1 mg, 0.5 mmol) was added to the precipitatie with stirring for 1 h and a blue solution was obtained. Blue crystals of (I) were obtained by evaporation of the solution at room temperature.
All H atoms attached to C were positioned geometrically and refined in the riding aproximation, with C–H = 0.93 Å and Uiso(H) = 1.2Ueq(C). The methyl groups were allowed to rotate but not to tip. The disordered C atoms of the BIE ligand were refined using isotropic C atoms split over two sites, with half occupancy each, and their hydrogen atoms not included in the model.
Coordination polymers constructed by substituted benzimidazole or imidazole have received increasing interests (Yang et al., 2006; Ma et al., 2000). We have selected 2,2'-bis(imidazol)ether (BIE) as a bridging ligand, p-methoxybenzoate as an anion, and CuII as a central metal, generating a new chain coordination polymer, [Cu(p-MB)2(BIE)]n, (I), which is reported here. In this structure the CuII atom lies on a centre of symmetry and is four-coordinated by two nitrogen atoms from two BIE molecules and two oxygen atoms from two different p-MB anions (Cu–N 2.003 (3) Å and Cu–O 1.980 (2) Å) in a square-planar coordination geometry (Fig. 1). The Cu–O and Cu–N bond lengths are all within normal ranges (Zhang et al., 2004; Cao et al., 2002). The two nitrogen atoms of the BIE ligand bridge two CuII centers, leading to a one-dimensional chain structure (Fig. 2). The monocarboxylate p-MB anion, as a terminal ligand, attaches to both sides of the BIE-CuII chains.
For related literature, see: Cao et al. (2002); Ma et al. (2000); Yang et al. (2006); Zhang et al. (2004).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell refinement: PROCESS-AUTO (Rigaku, 1998); data reduction: PROCESS-AUTO (Rigaku, 1998); 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 (Sheldrick, 1997).
[Cu(C7H4O3)2(C10H14N4O)] | F(000) = 1188 |
Mr = 572.06 | Dx = 1.484 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71069 Å |
Hall symbol: -C 2yc | Cell parameters from 8430 reflections |
a = 21.866 (13) Å | θ = 3.0–24.4° |
b = 7.699 (4) Å | µ = 0.91 mm−1 |
c = 15.519 (8) Å | T = 293 K |
β = 101.44 (2)° | Plate, blue |
V = 2561 (2) Å3 | 0.49 × 0.48 × 0.06 mm |
Z = 4 |
Rigaku R-AXIS RAPID diffractometer | 2899 independent reflections |
Radiation source: rotor target | 2106 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.4°, θmin = 3.0° |
ω scans | h = −28→28 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −9→9 |
Tmin = 0.65, Tmax = 0.950 | l = −20→20 |
11978 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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.155 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0869P)2 + 1.4878P] where P = (Fo2 + 2Fc2)/3 |
2899 reflections | (Δ/σ)max < 0.001 |
196 parameters | Δρmax = 0.41 e Å−3 |
0 restraints | Δρmin = −0.49 e Å−3 |
[Cu(C7H4O3)2(C10H14N4O)] | V = 2561 (2) Å3 |
Mr = 572.06 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 21.866 (13) Å | µ = 0.91 mm−1 |
b = 7.699 (4) Å | T = 293 K |
c = 15.519 (8) Å | 0.49 × 0.48 × 0.06 mm |
β = 101.44 (2)° |
Rigaku R-AXIS RAPID diffractometer | 2899 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2106 reflections with I > 2σ(I) |
Tmin = 0.65, Tmax = 0.950 | Rint = 0.051 |
11978 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.155 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.41 e Å−3 |
2899 reflections | Δρmin = −0.49 e Å−3 |
196 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 | Occ. (<1) | |
Cu1 | 0.0000 | 0.0000 | 0.5000 | 0.0411 (2) | |
C1 | 0.03679 (17) | 0.3163 (5) | 0.6067 (3) | 0.0674 (10) | |
H1 | 0.0143 | 0.2802 | 0.6484 | 0.081* | |
C2 | 0.07700 (18) | 0.3296 (5) | 0.4927 (2) | 0.0638 (9) | |
H2 | 0.0878 | 0.3015 | 0.4393 | 0.077* | |
C3 | 0.0962 (2) | 0.4710 (5) | 0.5402 (3) | 0.0743 (12) | |
H3 | 0.1217 | 0.5587 | 0.5261 | 0.089* | |
C4 | 0.0739 (5) | 0.6360 (11) | 0.6582 (7) | 0.073 (2) | 0.50 |
C4' | 0.0884 (5) | 0.5482 (14) | 0.7085 (6) | 0.066 (2) | 0.50 |
C5 | 0.0754 (5) | 0.5791 (16) | 0.7487 (7) | 0.076 (3) | 0.50 |
C5' | 0.0296 (5) | 0.6503 (10) | 0.7251 (5) | 0.0632 (19) | 0.50 |
C6 | −0.09631 (15) | 0.0740 (4) | 0.5710 (2) | 0.0451 (7) | |
C7 | −0.13921 (14) | 0.0973 (4) | 0.63396 (19) | 0.0438 (7) | |
C8 | −0.19905 (16) | 0.1591 (6) | 0.6029 (2) | 0.0641 (10) | |
H8 | −0.2118 | 0.1832 | 0.5433 | 0.077* | |
C9 | −0.23998 (16) | 0.1856 (6) | 0.6589 (2) | 0.0689 (11) | |
H9 | −0.2798 | 0.2283 | 0.6370 | 0.083* | |
C10 | −0.22173 (15) | 0.1485 (5) | 0.7478 (2) | 0.0539 (8) | |
C11 | −0.16211 (16) | 0.0878 (5) | 0.7807 (2) | 0.0535 (8) | |
H11 | −0.1494 | 0.0636 | 0.8403 | 0.064* | |
C12 | −0.12126 (15) | 0.0635 (5) | 0.7230 (2) | 0.0488 (7) | |
H12 | −0.0810 | 0.0236 | 0.7449 | 0.059* | |
C13 | −0.2490 (2) | 0.1688 (7) | 0.8892 (3) | 0.0852 (14) | |
H13A | −0.2851 | 0.1888 | 0.9144 | 0.128* | |
H13B | −0.2184 | 0.2568 | 0.9091 | 0.128* | |
H13C | −0.2318 | 0.0567 | 0.9071 | 0.128* | |
N1 | 0.03890 (11) | 0.2319 (3) | 0.53434 (16) | 0.0475 (6) | |
N2 | 0.07111 (15) | 0.4613 (5) | 0.6132 (3) | 0.0815 (12) | |
O1 | −0.26625 (11) | 0.1746 (4) | 0.79675 (16) | 0.0749 (8) | |
O2 | −0.11383 (11) | 0.1160 (3) | 0.49215 (14) | 0.0567 (6) | |
O3 | −0.04254 (10) | 0.0090 (3) | 0.60132 (15) | 0.0479 (5) | |
O4 | 0.0158 (2) | 0.5193 (6) | 0.7619 (6) | 0.0626 (18) | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0408 (3) | 0.0455 (3) | 0.0388 (3) | 0.0011 (2) | 0.0126 (2) | −0.0031 (2) |
C1 | 0.051 (2) | 0.078 (3) | 0.079 (2) | −0.0133 (19) | 0.0260 (17) | −0.036 (2) |
C2 | 0.074 (2) | 0.061 (2) | 0.0566 (19) | −0.0173 (19) | 0.0136 (17) | 0.0050 (18) |
C3 | 0.065 (3) | 0.057 (2) | 0.097 (3) | −0.0103 (18) | 0.006 (2) | −0.003 (2) |
C4 | 0.101 (7) | 0.059 (5) | 0.069 (5) | −0.019 (5) | 0.037 (5) | −0.023 (4) |
C4' | 0.081 (6) | 0.077 (6) | 0.039 (4) | −0.022 (5) | 0.007 (4) | −0.015 (5) |
C5 | 0.077 (6) | 0.098 (8) | 0.055 (5) | −0.037 (6) | 0.018 (5) | −0.018 (6) |
C5' | 0.087 (6) | 0.055 (5) | 0.051 (4) | 0.008 (4) | 0.019 (4) | −0.006 (3) |
C6 | 0.0496 (18) | 0.0423 (16) | 0.0457 (16) | −0.0027 (14) | 0.0146 (13) | −0.0032 (14) |
C7 | 0.0413 (16) | 0.0480 (18) | 0.0442 (15) | 0.0001 (13) | 0.0132 (12) | −0.0008 (13) |
C8 | 0.0505 (19) | 0.095 (3) | 0.0467 (17) | 0.0130 (19) | 0.0089 (14) | 0.0061 (18) |
C9 | 0.0415 (18) | 0.104 (3) | 0.061 (2) | 0.0192 (19) | 0.0102 (15) | 0.004 (2) |
C10 | 0.0453 (17) | 0.066 (2) | 0.0545 (17) | 0.0018 (15) | 0.0206 (14) | −0.0035 (16) |
C11 | 0.0517 (18) | 0.067 (2) | 0.0437 (16) | 0.0055 (16) | 0.0139 (13) | 0.0009 (16) |
C12 | 0.0420 (16) | 0.0594 (18) | 0.0455 (16) | 0.0054 (14) | 0.0100 (13) | 0.0014 (15) |
C13 | 0.083 (3) | 0.119 (4) | 0.063 (2) | 0.004 (3) | 0.037 (2) | −0.010 (2) |
N1 | 0.0432 (14) | 0.0485 (14) | 0.0510 (14) | 0.0023 (11) | 0.0098 (11) | −0.0034 (12) |
N2 | 0.0501 (18) | 0.079 (2) | 0.120 (3) | −0.0167 (16) | 0.027 (2) | −0.057 (2) |
O1 | 0.0518 (14) | 0.114 (2) | 0.0656 (15) | 0.0114 (15) | 0.0276 (12) | −0.0026 (15) |
O2 | 0.0643 (14) | 0.0632 (15) | 0.0444 (12) | 0.0041 (12) | 0.0154 (10) | 0.0031 (11) |
O3 | 0.0445 (12) | 0.0568 (14) | 0.0446 (11) | 0.0027 (10) | 0.0140 (9) | −0.0034 (9) |
O4 | 0.066 (5) | 0.070 (3) | 0.057 (5) | −0.001 (2) | 0.025 (4) | −0.007 (3) |
Cu1—O3 | 1.980 (2) | C5'—O4ii | 1.457 (10) |
Cu1—O3i | 1.980 (2) | C5'—C5'ii | 1.637 (17) |
Cu1—N1 | 2.003 (3) | C6—O2 | 1.249 (4) |
Cu1—N1i | 2.003 (3) | C6—O3 | 1.279 (4) |
C1—N1 | 1.306 (4) | C6—C7 | 1.494 (4) |
C1—N2 | 1.338 (5) | C7—C12 | 1.384 (4) |
C1—H1 | 0.9300 | C7—C8 | 1.386 (5) |
C2—C3 | 1.335 (5) | C8—C9 | 1.380 (5) |
C2—N1 | 1.376 (4) | C8—H8 | 0.9300 |
C2—H2 | 0.9300 | C9—C10 | 1.388 (5) |
C3—N2 | 1.354 (6) | C9—H9 | 0.9300 |
C3—H3 | 0.9300 | C10—O1 | 1.363 (4) |
C4—C4' | 1.034 (12) | C10—C11 | 1.383 (5) |
C4—C5 | 1.466 (13) | C11—C12 | 1.397 (4) |
C4—N2 | 1.511 (8) | C11—H11 | 0.9300 |
C4—C5' | 1.557 (11) | C12—H12 | 0.9300 |
C4'—C5 | 0.773 (10) | C13—O1 | 1.410 (4) |
C4'—C5' | 1.570 (14) | C13—H13A | 0.9600 |
C4'—N2 | 1.599 (9) | C13—H13B | 0.9600 |
C5—C5' | 1.136 (13) | C13—H13C | 0.9600 |
C5—O4 | 1.435 (11) | O4—O4ii | 0.715 (10) |
C5'—O4 | 1.227 (10) | O4—C5'ii | 1.457 (10) |
O3—Cu1—O3i | 180.0 | O3—C6—C7 | 117.2 (3) |
O3—Cu1—N1 | 89.95 (10) | C12—C7—C8 | 118.3 (3) |
O3i—Cu1—N1 | 90.05 (10) | C12—C7—C6 | 122.7 (3) |
O3—Cu1—N1i | 90.05 (10) | C8—C7—C6 | 119.0 (3) |
O3i—Cu1—N1i | 89.95 (10) | C9—C8—C7 | 121.1 (3) |
N1—Cu1—N1i | 180.00 (13) | C9—C8—H8 | 119.4 |
N1—C1—N2 | 111.4 (3) | C7—C8—H8 | 119.4 |
N1—C1—H1 | 124.3 | C8—C9—C10 | 120.1 (3) |
N2—C1—H1 | 124.3 | C8—C9—H9 | 120.0 |
C3—C2—N1 | 109.9 (4) | C10—C9—H9 | 120.0 |
C3—C2—H2 | 125.1 | O1—C10—C11 | 124.7 (3) |
N1—C2—H2 | 125.1 | O1—C10—C9 | 115.3 (3) |
C2—C3—N2 | 106.4 (4) | C11—C10—C9 | 120.0 (3) |
C2—C3—H3 | 126.8 | C10—C11—C12 | 119.0 (3) |
N2—C3—H3 | 126.8 | C10—C11—H11 | 120.5 |
C4'—C4—N2 | 75.3 (8) | C12—C11—H11 | 120.5 |
C5—C4—N2 | 99.7 (8) | C7—C12—C11 | 121.6 (3) |
N2—C4—C5' | 113.5 (6) | C7—C12—H12 | 119.2 |
C5—C4'—C4 | 107.5 (18) | C11—C12—H12 | 119.2 |
C4—C4'—C5' | 70.0 (9) | O1—C13—H13A | 109.5 |
C5—C4'—N2 | 144.9 (14) | O1—C13—H13B | 109.5 |
C4—C4'—N2 | 66.0 (6) | H13A—C13—H13B | 109.5 |
C5'—C4'—N2 | 108.0 (6) | O1—C13—H13C | 109.5 |
C4'—C5—C5' | 109.2 (16) | H13A—C13—H13C | 109.5 |
C4'—C5—O4 | 120.5 (13) | H13B—C13—H13C | 109.5 |
C5'—C5—O4 | 55.6 (6) | C1—N1—C2 | 105.0 (3) |
C5'—C5—C4 | 72.3 (8) | C1—N1—Cu1 | 125.9 (2) |
O4—C5—C4 | 112.6 (9) | C2—N1—Cu1 | 128.9 (2) |
C5—C5'—O4 | 74.7 (8) | C1—N2—C3 | 107.3 (3) |
C5—C5'—O4ii | 101.6 (8) | C1—N2—C4 | 138.4 (4) |
C5—C5'—C4 | 63.7 (7) | C3—N2—C4 | 110.6 (5) |
O4—C5'—C4 | 119.8 (8) | C1—N2—C4' | 116.4 (5) |
O4ii—C5'—C4 | 125.0 (6) | C3—N2—C4' | 133.6 (5) |
O4—C5'—C4' | 87.2 (7) | C10—O1—C13 | 119.1 (3) |
O4ii—C5'—C4' | 106.1 (6) | C6—O3—Cu1 | 105.27 (19) |
C5—C5'—C5'ii | 125.2 (9) | O4ii—O4—C5' | 93.5 (10) |
O4—C5'—C5'ii | 59.1 (5) | O4ii—O4—C5 | 137.4 (16) |
O4ii—C5'—C5'ii | 46.3 (5) | C5'—O4—C5 | 49.8 (6) |
C4—C5'—C5'ii | 166.1 (10) | O4ii—O4—C5'ii | 57.2 (8) |
C4'—C5'—C5'ii | 145.9 (6) | C5'—O4—C5'ii | 74.6 (7) |
O2—C6—O3 | 122.9 (3) | C5—O4—C5'ii | 117.5 (8) |
O2—C6—C7 | 119.9 (3) | ||
N1—C2—C3—N2 | 1.1 (5) | C7—C8—C9—C10 | −0.7 (7) |
N2—C4—C4'—C5 | −143.0 (14) | C8—C9—C10—O1 | −178.3 (4) |
C5'—C4—C4'—C5 | −21.5 (12) | C8—C9—C10—C11 | 1.1 (6) |
C5—C4—C4'—C5' | 21.5 (12) | O1—C10—C11—C12 | 178.8 (3) |
N2—C4—C4'—C5' | −121.5 (6) | C9—C10—C11—C12 | −0.6 (6) |
C5—C4—C4'—N2 | 143.0 (14) | C8—C7—C12—C11 | 0.9 (5) |
C5'—C4—C4'—N2 | 121.5 (6) | C6—C7—C12—C11 | 179.4 (3) |
C4—C4'—C5—C5' | 30.3 (17) | C10—C11—C12—C7 | −0.5 (5) |
N2—C4'—C5—C5' | −43 (3) | N2—C1—N1—C2 | 0.1 (4) |
C4—C4'—C5—O4 | 90.9 (17) | N2—C1—N1—Cu1 | 175.4 (3) |
C5'—C4'—C5—O4 | 60.7 (12) | C3—C2—N1—C1 | −0.7 (4) |
N2—C4'—C5—O4 | 18 (4) | C3—C2—N1—Cu1 | −175.9 (3) |
C5'—C4'—C5—C4 | −30.3 (17) | O3—Cu1—N1—C1 | 8.2 (3) |
N2—C4'—C5—C4 | −73 (3) | O3i—Cu1—N1—C1 | −171.8 (3) |
N2—C4—C5—C4' | 36.2 (13) | O3—Cu1—N1—C2 | −177.6 (3) |
C5'—C4—C5—C4' | 150.0 (17) | O3i—Cu1—N1—C2 | 2.4 (3) |
C4'—C4—C5—C5' | −150.0 (17) | N1—C1—N2—C3 | 0.6 (5) |
N2—C4—C5—C5' | −113.8 (8) | N1—C1—N2—C4 | 155.5 (8) |
C4'—C4—C5—O4 | −111.0 (17) | N1—C1—N2—C4' | −163.3 (5) |
N2—C4—C5—O4 | −74.8 (10) | C2—C3—N2—C1 | −1.0 (5) |
C5'—C4—C5—O4 | 39.1 (7) | C2—C3—N2—C4 | −163.5 (5) |
C4'—C5—C5'—O4 | 114.3 (15) | C2—C3—N2—C4' | 159.0 (7) |
C4—C5—C5'—O4 | 135.2 (7) | C4'—C4—N2—C1 | 70.4 (12) |
C4'—C5—C5'—O4ii | 102.7 (15) | C5—C4—N2—C1 | 52.5 (12) |
O4—C5—C5'—O4ii | −11.7 (8) | C5'—C4—N2—C1 | 8.7 (14) |
C4—C5—C5'—O4ii | 123.5 (7) | C4'—C4—N2—C3 | −135.2 (8) |
C4'—C5—C5'—C4 | −20.8 (13) | C5—C4—N2—C3 | −153.1 (6) |
O4—C5—C5'—C4 | −135.2 (7) | C5'—C4—N2—C3 | 163.1 (7) |
O4—C5—C5'—C4' | −114.3 (15) | C5—C4—N2—C4' | −17.9 (8) |
C4—C5—C5'—C4' | 20.8 (13) | C5'—C4—N2—C4' | −61.7 (8) |
C4'—C5—C5'—C5'ii | 146.7 (13) | C5—C4'—N2—C1 | −49 (3) |
O4—C5—C5'—C5'ii | 32.4 (8) | C4—C4'—N2—C1 | −135.7 (7) |
C4—C5—C5'—C5'ii | 167.6 (9) | C5'—C4'—N2—C1 | −78.3 (8) |
C4'—C4—C5'—C5 | 15.4 (9) | C5—C4'—N2—C3 | 152 (3) |
N2—C4—C5'—C5 | 79.4 (11) | C4—C4'—N2—C3 | 65.7 (11) |
C4'—C4—C5'—O4 | −36.2 (10) | C5'—C4'—N2—C3 | 123.1 (7) |
C5—C4—C5'—O4 | −51.6 (9) | C5—C4'—N2—C4 | 87 (3) |
N2—C4—C5'—O4 | 27.8 (14) | C5'—C4'—N2—C4 | 57.4 (8) |
C4'—C4—C5'—O4ii | −70.5 (10) | C11—C10—O1—C13 | 11.3 (6) |
C5—C4—C5'—O4ii | −85.9 (10) | C9—C10—O1—C13 | −169.4 (4) |
N2—C4—C5'—O4ii | −6.5 (14) | O2—C6—O3—Cu1 | 1.0 (4) |
C5—C4—C5'—C4' | −15.4 (9) | C7—C6—O3—Cu1 | −179.7 (2) |
N2—C4—C5'—C4' | 64.0 (8) | N1—Cu1—O3—C6 | 93.6 (2) |
C4'—C4—C5'—C5'ii | −118 (2) | N1i—Cu1—O3—C6 | −86.4 (2) |
C5—C4—C5'—C5'ii | −133 (2) | C5—C5'—O4—O4ii | −156.1 (15) |
N2—C4—C5'—C5'ii | −54 (3) | C4—C5'—O4—O4ii | −109.4 (14) |
C4—C4'—C5'—C5 | −149.3 (19) | C4'—C5'—O4—O4ii | −131.0 (13) |
N2—C4'—C5'—C5 | 155.7 (19) | C5'ii—C5'—O4—O4ii | 54.6 (12) |
C5—C4'—C5'—O4 | −61.6 (15) | O4ii—C5'—O4—C5 | 156.1 (15) |
C4—C4'—C5'—O4 | 149.1 (9) | C4—C5'—O4—C5 | 46.7 (8) |
N2—C4'—C5'—O4 | 94.1 (8) | C4'—C5'—O4—C5 | 25.1 (6) |
C5—C4'—C5'—O4ii | −84.2 (16) | C5'ii—C5'—O4—C5 | −149.3 (10) |
C4—C4'—C5'—O4ii | 126.5 (9) | C5—C5'—O4—C5'ii | 149.3 (10) |
N2—C4'—C5'—O4ii | 71.5 (8) | O4ii—C5'—O4—C5'ii | −54.6 (12) |
C5—C4'—C5'—C4 | 149.3 (19) | C4—C5'—O4—C5'ii | −163.9 (12) |
N2—C4'—C5'—C4 | −55.0 (6) | C4'—C5'—O4—C5'ii | 174.4 (8) |
C5—C4'—C5'—C5'ii | −53 (2) | C4'—C5—O4—O4ii | −57 (3) |
C4—C4'—C5'—C5'ii | 157.7 (16) | C5'—C5—O4—O4ii | 36.7 (14) |
N2—C4'—C5'—C5'ii | 102.7 (16) | C4—C5—O4—O4ii | −10.0 (18) |
O2—C6—C7—C12 | −175.9 (3) | C4'—C5—O4—C5' | −93.4 (19) |
O3—C6—C7—C12 | 4.8 (5) | C4—C5—O4—C5' | −46.7 (8) |
O2—C6—C7—C8 | 2.6 (5) | C4'—C5—O4—C5'ii | −127.1 (19) |
O3—C6—C7—C8 | −176.8 (3) | C5'—C5—O4—C5'ii | −33.7 (10) |
C12—C7—C8—C9 | −0.4 (6) | C4—C5—O4—C5'ii | −80.3 (12) |
C6—C7—C8—C9 | −178.9 (4) |
Symmetry codes: (i) −x, −y, −z+1; (ii) −x, y, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C7H4O3)2(C10H14N4O)] |
Mr | 572.06 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 293 |
a, b, c (Å) | 21.866 (13), 7.699 (4), 15.519 (8) |
β (°) | 101.44 (2) |
V (Å3) | 2561 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.91 |
Crystal size (mm) | 0.49 × 0.48 × 0.06 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.65, 0.950 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11978, 2899, 2106 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.648 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.155, 1.05 |
No. of reflections | 2899 |
No. of parameters | 196 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.41, −0.49 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL-Plus (Sheldrick, 1990).
Coordination polymers constructed by substituted benzimidazole or imidazole have received increasing interests (Yang et al., 2006; Ma et al., 2000). We have selected 2,2'-bis(imidazol)ether (BIE) as a bridging ligand, p-methoxybenzoate as an anion, and CuII as a central metal, generating a new chain coordination polymer, [Cu(p-MB)2(BIE)]n, (I), which is reported here. In this structure the CuII atom lies on a centre of symmetry and is four-coordinated by two nitrogen atoms from two BIE molecules and two oxygen atoms from two different p-MB anions (Cu–N 2.003 (3) Å and Cu–O 1.980 (2) Å) in a square-planar coordination geometry (Fig. 1). The Cu–O and Cu–N bond lengths are all within normal ranges (Zhang et al., 2004; Cao et al., 2002). The two nitrogen atoms of the BIE ligand bridge two CuII centers, leading to a one-dimensional chain structure (Fig. 2). The monocarboxylate p-MB anion, as a terminal ligand, attaches to both sides of the BIE-CuII chains.