| Literature DB >> 21202493 |
Abstract
The title coordination polymer, [Zn(C(8)H(4)N(4)O(2))(H(2)O)](n), was prepared by the hydro-thermal reaction of zinc nitrate and 2-(1H-tetra-zol-5-yl)benzoic acid. Two types of coordinated zinc cations exist in the structure. One is tetra-hedrally coordinated by two O and two N from two ligands, the other is octa-hedrally coordinated by two N and two O from two ligands at equatorial sites and by two O atoms of water mol-ecules at axial sites, resulting in a two-dimensional framework. The crystal structure is stabilized by intra-molecular O-H⋯O and O-H⋯N hydrogen bonds.Entities:
Year: 2008 PMID: 21202493 PMCID: PMC2961416 DOI: 10.1107/S1600536808013688
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| [Zn(C8H4N4O2)(H2O)] | |
| Monoclinic, | Mo |
| Hall symbol: -C 2yc | Cell parameters from 1979 reflections |
| θ = 3.1–27.5º | |
| µ = 2.57 mm−1 | |
| β = 114.39 (2)º | Block, colourless |
| 0.07 × 0.07 × 0.06 mm | |
| Rigaku SCXmini diffractometer | 2173 independent reflections |
| Radiation source: fine-focus sealed tube | 1623 reflections with |
| Monochromator: graphite | |
| Detector resolution: 13.6612 pixels mm-1 | θmax = 27.5º |
| θmin = 3.1º | |
| ω scans | |
| Absorption correction: multi-scan(CrystalClear; Rigaku, 2005) | |
| 9320 measured reflections |
| Refinement on | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| H-atom parameters constrained | |
| | |
| (Δ/σ)max < 0.001 | |
| 2173 reflections | Δρmax = 0.63 e Å−3 |
| 147 parameters | Δρmin = −0.60 e Å−3 |
| Primary atom site location: structure-invariant direct methods | Extinction correction: none |
| 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 |
| Zn1 | 1.0000 | −0.31787 (9) | 0.2500 | 0.0245 (2) | |
| Zn2 | 1.0000 | 0.0000 | 0.5000 | 0.0242 (2) | |
| C1 | 0.9761 (2) | 0.3503 (5) | 0.3649 (3) | 0.0202 (8) | |
| C2 | 0.8990 (2) | 0.3170 (6) | 0.2905 (3) | 0.0213 (8) | |
| C3 | 0.8527 (2) | 0.4731 (6) | 0.2629 (3) | 0.0289 (10) | |
| H3 | 0.8693 | 0.5859 | 0.2959 | 0.035* | |
| C4 | 0.7821 (3) | 0.4630 (6) | 0.1866 (4) | 0.0383 (12) | |
| H4 | 0.7514 | 0.5681 | 0.1693 | 0.046* | |
| C5 | 0.7577 (3) | 0.2978 (7) | 0.1370 (4) | 0.0410 (12) | |
| H5 | 0.7104 | 0.2910 | 0.0858 | 0.049* | |
| C6 | 0.8032 (3) | 0.1407 (6) | 0.1630 (3) | 0.0339 (11) | |
| H6 | 0.7864 | 0.0299 | 0.1279 | 0.041* | |
| C7 | 0.8733 (2) | 0.1459 (6) | 0.2405 (3) | 0.0222 (9) | |
| C8 | 0.9165 (2) | −0.0327 (5) | 0.2671 (3) | 0.0217 (9) | |
| N1 | 1.0151 (2) | 0.2573 (5) | 0.4466 (2) | 0.0241 (8) | |
| N2 | 1.0788 (2) | 0.3533 (5) | 0.4939 (3) | 0.0295 (9) | |
| N3 | 1.0792 (2) | 0.4999 (5) | 0.4424 (3) | 0.0280 (8) | |
| N4 | 1.01491 (19) | 0.5018 (4) | 0.3598 (2) | 0.0220 (7) | |
| O1 | 0.91662 (17) | −0.1326 (4) | 0.1958 (2) | 0.0270 (7) | |
| O2 | 0.94994 (17) | −0.0846 (4) | 0.3536 (2) | 0.0314 (7) | |
| O1W | 0.89412 (16) | 0.0990 (4) | 0.4984 (2) | 0.0322 (7) | |
| H1W | 0.8913 | 0.0681 | 0.5497 | 0.048* | |
| H2W | 0.8872 | 0.2061 | 0.5035 | 0.048* |
| Zn1 | 0.0335 (4) | 0.0167 (3) | 0.0215 (4) | 0.000 | 0.0097 (3) | 0.000 |
| Zn2 | 0.0341 (4) | 0.0186 (4) | 0.0186 (4) | −0.0009 (3) | 0.0097 (3) | 0.0027 (3) |
| C1 | 0.026 (2) | 0.0153 (19) | 0.021 (2) | −0.0018 (17) | 0.0104 (17) | 0.0000 (16) |
| C2 | 0.021 (2) | 0.022 (2) | 0.0183 (19) | −0.0016 (17) | 0.0057 (17) | 0.0025 (16) |
| C3 | 0.032 (2) | 0.023 (2) | 0.030 (2) | 0.0042 (19) | 0.011 (2) | 0.0001 (18) |
| C4 | 0.031 (3) | 0.033 (3) | 0.045 (3) | 0.013 (2) | 0.009 (2) | 0.003 (2) |
| C5 | 0.026 (2) | 0.043 (3) | 0.039 (3) | 0.004 (2) | −0.002 (2) | −0.001 (2) |
| C6 | 0.029 (2) | 0.029 (2) | 0.035 (3) | 0.001 (2) | 0.004 (2) | −0.004 (2) |
| C7 | 0.024 (2) | 0.019 (2) | 0.022 (2) | 0.0019 (17) | 0.0094 (18) | 0.0021 (16) |
| C8 | 0.023 (2) | 0.021 (2) | 0.021 (2) | −0.0050 (16) | 0.0088 (18) | −0.0013 (16) |
| N1 | 0.032 (2) | 0.0186 (17) | 0.0189 (17) | −0.0044 (15) | 0.0083 (16) | 0.0033 (14) |
| N2 | 0.029 (2) | 0.0235 (19) | 0.030 (2) | −0.0030 (16) | 0.0062 (17) | 0.0079 (16) |
| N3 | 0.031 (2) | 0.0223 (19) | 0.0235 (19) | −0.0053 (15) | 0.0041 (17) | 0.0025 (14) |
| N4 | 0.0271 (18) | 0.0168 (17) | 0.0210 (18) | −0.0020 (14) | 0.0088 (15) | 0.0001 (13) |
| O1 | 0.0390 (18) | 0.0226 (15) | 0.0179 (14) | 0.0056 (13) | 0.0101 (13) | −0.0029 (12) |
| O2 | 0.048 (2) | 0.0232 (16) | 0.0191 (15) | 0.0050 (14) | 0.0100 (15) | −0.0004 (12) |
| O1W | 0.0385 (18) | 0.0309 (17) | 0.0284 (17) | 0.0003 (15) | 0.0150 (15) | −0.0012 (14) |
| Zn1—O1i | 2.000 (3) | C3—H3 | 0.9300 |
| Zn1—O1 | 2.000 (3) | C4—C5 | 1.369 (6) |
| Zn1—N4ii | 2.008 (3) | C4—H4 | 0.9300 |
| Zn1—N4iii | 2.008 (3) | C5—C6 | 1.387 (6) |
| Zn2—N1 | 2.072 (3) | C5—H5 | 0.9300 |
| Zn2—N1iv | 2.072 (3) | C6—C7 | 1.389 (6) |
| Zn2—O2iv | 2.082 (3) | C6—H6 | 0.9300 |
| Zn2—O2 | 2.082 (3) | C7—C8 | 1.491 (5) |
| Zn2—O1Wiv | 2.193 (3) | C8—O2 | 1.240 (5) |
| Zn2—O1W | 2.193 (3) | C8—O1 | 1.281 (5) |
| C1—N1 | 1.321 (5) | N1—N2 | 1.345 (5) |
| C1—N4 | 1.343 (5) | N2—N3 | 1.300 (4) |
| C1—C2 | 1.484 (5) | N3—N4 | 1.353 (5) |
| C2—C3 | 1.390 (5) | N4—Zn1v | 2.008 (3) |
| C2—C7 | 1.411 (5) | O1W—H1W | 0.8200 |
| C3—C4 | 1.389 (6) | O1W—H2W | 0.7851 |
| O1i—Zn1—O1 | 97.27 (17) | C2—C3—H3 | 119.5 |
| O1i—Zn1—N4ii | 124.90 (13) | C5—C4—C3 | 119.8 (4) |
| O1—Zn1—N4ii | 105.93 (12) | C5—C4—H4 | 120.1 |
| O1i—Zn1—N4iii | 105.93 (12) | C3—C4—H4 | 120.1 |
| O1—Zn1—N4iii | 124.90 (13) | C4—C5—C6 | 120.2 (4) |
| N4ii—Zn1—N4iii | 100.34 (19) | C4—C5—H5 | 119.9 |
| N1—Zn2—N1iv | 180.000 (1) | C6—C5—H5 | 119.9 |
| N1—Zn2—O2iv | 93.81 (13) | C5—C6—C7 | 121.1 (4) |
| N1iv—Zn2—O2iv | 86.19 (13) | C5—C6—H6 | 119.4 |
| N1—Zn2—O2 | 86.19 (13) | C7—C6—H6 | 119.4 |
| N1iv—Zn2—O2 | 93.81 (13) | C6—C7—C2 | 118.7 (4) |
| O2iv—Zn2—O2 | 180.000 (1) | C6—C7—C8 | 117.4 (4) |
| N1—Zn2—O1Wiv | 90.11 (13) | C2—C7—C8 | 123.9 (3) |
| N1iv—Zn2—O1Wiv | 89.89 (13) | O2—C8—O1 | 121.1 (4) |
| O2iv—Zn2—O1Wiv | 92.66 (12) | O2—C8—C7 | 122.1 (4) |
| O2—Zn2—O1Wiv | 87.34 (12) | O1—C8—C7 | 116.8 (4) |
| N1—Zn2—O1W | 89.89 (13) | C1—N1—N2 | 106.9 (3) |
| N1iv—Zn2—O1W | 90.11 (13) | C1—N1—Zn2 | 132.8 (3) |
| O2iv—Zn2—O1W | 87.34 (12) | N2—N1—Zn2 | 120.0 (3) |
| O2—Zn2—O1W | 92.66 (12) | N3—N2—N1 | 109.3 (3) |
| O1Wiv—Zn2—O1W | 180.000 (1) | N2—N3—N4 | 108.4 (3) |
| N1—C1—N4 | 109.2 (4) | C1—N4—N3 | 106.3 (3) |
| N1—C1—C2 | 129.5 (4) | C1—N4—Zn1v | 131.8 (3) |
| N4—C1—C2 | 121.1 (3) | N3—N4—Zn1v | 121.1 (3) |
| C3—C2—C7 | 119.2 (4) | C8—O1—Zn1 | 108.4 (3) |
| C3—C2—C1 | 115.9 (4) | C8—O2—Zn2 | 145.6 (3) |
| C7—C2—C1 | 124.5 (4) | Zn2—O1W—H1W | 109.5 |
| C4—C3—C2 | 120.9 (4) | Zn2—O1W—H2W | 121.0 |
| C4—C3—H3 | 119.5 | H1W—O1W—H2W | 95.2 |
| H··· | ||||
| O1W—H1W···O1vi | 0.82 | 2.08 | 2.804 (4) | 147 |
| O1W—H2W···N3vii | 0.79 | 2.25 | 2.976 (5) | 155 |
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| O1 | 0.82 | 2.08 | 2.804 (4) | 147 |
| O1 | 0.79 | 2.25 | 2.976 (5) | 155 |
Symmetry codes: (i) ; (ii) .