
Acta Cryst. (2012). E68, o3119 [ doi:10.1107/S1600536812041943 ]
The title compound, C12H10N2O2·H2O, crystallizes as a zwitterion in which the pyridine N atom is protonated and the carboxyl OH group is deprotonated. The benzene and pyridinium rings are inclined at a dihedral angle of 54.93 (1)°. In the crystal, O-H
O and N-H
O hydrogen bonds link the molecules into a three-dimensional supramolecular network.
A mixture of 3-(6-Amino-pyridin-3-yl)-benzoic acid (0.0214 g, 0.1 mmol), Zn(CH3COO)2.2H2O (0.0219 g, 0.1 mmol) and water (8 ml) was stired vigorously for 30 min and then sealed in a Teflon-lined stainless-steel autoclave. The autoclave was heated and maintained at 393 K for 2 days, and then cooled to room temperature at 5 K h-1 to obtain colorless prism crystals suitable for X-ray analysis.
The H atoms bonded to C and N atoms were positioned geometrically (C—H = 0.93 Å, N—H = 0.86 Å) and allowed to ride on their parent atoms, with Uiso(H) value equal to 1.2Ueq(C or N). The H atoms bonded to water O atoms were included in calculated positions and refined with Uiso(H) = 1.5Ueq(O).
Data collection: SMART (Bruker, 1999); cell refinement: SAINT (Bruker,1999); data reduction: SAINT (Bruker,1999); 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).
| C12H10N2O2·H2O | F(000) = 488 |
| Mr = 232.24 | Dx = 1.394 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 1519 reflections |
| a = 7.1956 (18) Å | θ = 3.1–25.0° |
| b = 13.091 (9) Å | µ = 0.10 mm−1 |
| c = 11.987 (10) Å | T = 296 K |
| β = 101.44 (3)° | Prism, colourless |
| V = 1106.8 (12) Å3 | 0.20 × 0.18 × 0.17 mm |
| Z = 4 |
| Bruker SMART CCD diffractometer | 1942 independent reflections |
| Radiation source: fine-focus sealed tube | 1344 reflections with I > 2σ(I) |
| Graphite monochromator | Rint = 0.095 |
| φ and ω scans | θmax = 25.0°, θmin = 3.1° |
| Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −8→8 |
| Tmin = 0.980, Tmax = 0.983 | k = −15→15 |
| 9294 measured reflections | l = −14→14 |
| 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)] = 0.084 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.215 | H-atom parameters constrained |
| S = 1.09 | w = 1/[σ2(Fo2) + (0.0884P)2 + 0.8024P] where P = (Fo2 + 2Fc2)/3 |
| 1942 reflections | (Δ/σ)max < 0.001 |
| 154 parameters | Δρmax = 0.30 e Å−3 |
| 0 restraints | Δρmin = −0.21 e Å−3 |
| C12H10N2O2·H2O | V = 1106.8 (12) Å3 |
| Mr = 232.24 | Z = 4 |
| Monoclinic, P21/c | Mo Kα radiation |
| a = 7.1956 (18) Å | µ = 0.10 mm−1 |
| b = 13.091 (9) Å | T = 296 K |
| c = 11.987 (10) Å | 0.20 × 0.18 × 0.17 mm |
| β = 101.44 (3)° |
| Bruker SMART CCD diffractometer | 1942 independent reflections |
| Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1344 reflections with I > 2σ(I) |
| Tmin = 0.980, Tmax = 0.983 | Rint = 0.095 |
| 9294 measured reflections | θmax = 25.0° |
| R[F2 > 2σ(F2)] = 0.084 | H-atom parameters constrained |
| wR(F2) = 0.215 | Δρmax = 0.30 e Å−3 |
| S = 1.09 | Δρmin = −0.21 e Å−3 |
| 1942 reflections | Absolute structure: ? |
| 154 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
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 | 0.6726 (5) | 0.2413 (3) | −0.2146 (3) | 0.0454 (10) | |
| C2 | 0.4946 (5) | 0.1869 (3) | −0.1993 (3) | 0.0408 (9) | |
| C3 | 0.4506 (5) | 0.1783 (3) | −0.0921 (3) | 0.0418 (9) | |
| H3A | 0.5360 | 0.2026 | −0.0291 | 0.050* | |
| C4 | 0.2823 (5) | 0.1342 (3) | −0.0766 (3) | 0.0422 (9) | |
| C5 | 0.1555 (6) | 0.0988 (3) | −0.1711 (4) | 0.0518 (11) | |
| H5A | 0.0407 | 0.0704 | −0.1626 | 0.062* | |
| C6 | 0.1995 (6) | 0.1055 (3) | −0.2783 (4) | 0.0546 (11) | |
| H6A | 0.1146 | 0.0805 | −0.3410 | 0.066* | |
| C7 | 0.3682 (5) | 0.1489 (3) | −0.2930 (3) | 0.0475 (10) | |
| H7A | 0.3969 | 0.1526 | −0.3652 | 0.057* | |
| C8 | 0.2383 (5) | 0.1250 (3) | 0.0394 (3) | 0.0414 (9) | |
| C9 | 0.0750 (5) | 0.1644 (3) | 0.0640 (3) | 0.0461 (10) | |
| H9A | −0.0115 | 0.1964 | 0.0067 | 0.055* | |
| C10 | 0.1542 (5) | 0.1128 (3) | 0.2573 (3) | 0.0442 (10) | |
| C11 | 0.3236 (5) | 0.0713 (3) | 0.2355 (3) | 0.0482 (10) | |
| H11A | 0.4080 | 0.0389 | 0.2936 | 0.058* | |
| C12 | 0.3642 (5) | 0.0783 (3) | 0.1300 (3) | 0.0478 (10) | |
| H12A | 0.4779 | 0.0517 | 0.1172 | 0.057* | |
| N1 | 0.0361 (4) | 0.1579 (2) | 0.1700 (3) | 0.0454 (8) | |
| H1A | −0.0681 | 0.1837 | 0.1819 | 0.054* | |
| N2 | 0.1056 (5) | 0.1100 (3) | 0.3583 (3) | 0.0558 (10) | |
| H2A | 0.0003 | 0.1366 | 0.3671 | 0.067* | |
| H2B | 0.1795 | 0.0814 | 0.4149 | 0.067* | |
| O1 | 0.7197 (4) | 0.2360 (2) | −0.3109 (2) | 0.0626 (9) | |
| O1W | 0.2996 (5) | −0.0676 (3) | 0.4736 (3) | 0.0984 (13) | |
| H1WA | 0.3198 | −0.0995 | 0.5372 | 0.148* | |
| H1WB | 0.2433 | −0.1120 | 0.4237 | 0.148* | |
| O2 | 0.7649 (4) | 0.2900 (2) | −0.1316 (2) | 0.0611 (9) |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| C1 | 0.040 (2) | 0.050 (2) | 0.048 (2) | 0.0020 (18) | 0.0135 (18) | 0.007 (2) |
| C2 | 0.0366 (19) | 0.038 (2) | 0.052 (2) | 0.0037 (16) | 0.0172 (17) | 0.0019 (17) |
| C3 | 0.039 (2) | 0.043 (2) | 0.046 (2) | 0.0025 (17) | 0.0136 (17) | −0.0019 (17) |
| C4 | 0.043 (2) | 0.034 (2) | 0.055 (2) | −0.0038 (16) | 0.0223 (18) | −0.0001 (17) |
| C5 | 0.045 (2) | 0.046 (2) | 0.068 (3) | −0.0120 (19) | 0.019 (2) | −0.007 (2) |
| C6 | 0.051 (3) | 0.055 (3) | 0.055 (3) | −0.008 (2) | 0.004 (2) | −0.007 (2) |
| C7 | 0.047 (2) | 0.045 (2) | 0.053 (2) | 0.0009 (19) | 0.0162 (19) | −0.0021 (19) |
| C8 | 0.043 (2) | 0.0304 (19) | 0.055 (2) | 0.0031 (16) | 0.0192 (18) | 0.0039 (17) |
| C9 | 0.046 (2) | 0.043 (2) | 0.053 (2) | −0.0009 (18) | 0.0183 (19) | 0.0058 (18) |
| C10 | 0.047 (2) | 0.035 (2) | 0.056 (2) | −0.0028 (17) | 0.0215 (19) | 0.0021 (18) |
| C11 | 0.046 (2) | 0.043 (2) | 0.060 (3) | 0.0058 (18) | 0.0190 (19) | 0.0039 (19) |
| C12 | 0.044 (2) | 0.039 (2) | 0.065 (3) | 0.0067 (18) | 0.023 (2) | −0.0010 (19) |
| N1 | 0.0381 (17) | 0.0437 (18) | 0.060 (2) | 0.0043 (15) | 0.0242 (16) | 0.0041 (16) |
| N2 | 0.053 (2) | 0.062 (2) | 0.058 (2) | 0.0078 (17) | 0.0229 (17) | 0.0039 (17) |
| O1 | 0.0569 (18) | 0.089 (2) | 0.0477 (17) | −0.0125 (16) | 0.0258 (14) | −0.0030 (15) |
| O1W | 0.120 (3) | 0.107 (3) | 0.070 (2) | 0.030 (3) | 0.024 (2) | 0.032 (2) |
| O2 | 0.0484 (16) | 0.083 (2) | 0.0543 (18) | −0.0193 (16) | 0.0175 (14) | −0.0085 (16) |
| C1—O2 | 1.256 (4) | C8—C12 | 1.408 (5) |
| C1—O1 | 1.267 (5) | C9—N1 | 1.357 (5) |
| C1—C2 | 1.508 (5) | C9—H9A | 0.9300 |
| C2—C3 | 1.387 (5) | C10—N2 | 1.326 (5) |
| C2—C7 | 1.390 (5) | C10—N1 | 1.346 (5) |
| C3—C4 | 1.387 (5) | C10—C11 | 1.406 (5) |
| C3—H3A | 0.9300 | C11—C12 | 1.357 (5) |
| C4—C5 | 1.386 (5) | C11—H11A | 0.9300 |
| C4—C8 | 1.491 (5) | C12—H12A | 0.9300 |
| C5—C6 | 1.385 (5) | N1—H1A | 0.8600 |
| C5—H5A | 0.9300 | N2—H2A | 0.8600 |
| C6—C7 | 1.383 (5) | N2—H2B | 0.8600 |
| C6—H6A | 0.9300 | O1W—H1WA | 0.8554 |
| C7—H7A | 0.9300 | O1W—H1WB | 0.8736 |
| C8—C9 | 1.368 (5) | ||
| O2—C1—O1 | 123.7 (4) | C9—C8—C4 | 121.4 (4) |
| O2—C1—C2 | 118.1 (3) | C12—C8—C4 | 122.1 (3) |
| O1—C1—C2 | 118.2 (4) | N1—C9—C8 | 121.6 (4) |
| C3—C2—C7 | 119.1 (3) | N1—C9—H9A | 119.2 |
| C3—C2—C1 | 120.5 (3) | C8—C9—H9A | 119.2 |
| C7—C2—C1 | 120.3 (3) | N2—C10—N1 | 118.8 (3) |
| C4—C3—C2 | 121.5 (4) | N2—C10—C11 | 123.6 (4) |
| C4—C3—H3A | 119.2 | N1—C10—C11 | 117.6 (3) |
| C2—C3—H3A | 119.2 | C12—C11—C10 | 120.1 (4) |
| C5—C4—C3 | 118.7 (4) | C12—C11—H11A | 120.0 |
| C5—C4—C8 | 120.6 (3) | C10—C11—H11A | 120.0 |
| C3—C4—C8 | 120.7 (4) | C11—C12—C8 | 121.6 (4) |
| C6—C5—C4 | 120.2 (4) | C11—C12—H12A | 119.2 |
| C6—C5—H5A | 119.9 | C8—C12—H12A | 119.2 |
| C4—C5—H5A | 119.9 | C10—N1—C9 | 122.7 (3) |
| C7—C6—C5 | 120.8 (4) | C10—N1—H1A | 118.7 |
| C7—C6—H6A | 119.6 | C9—N1—H1A | 118.7 |
| C5—C6—H6A | 119.6 | C10—N2—H2A | 120.0 |
| C6—C7—C2 | 119.6 (4) | C10—N2—H2B | 120.0 |
| C6—C7—H7A | 120.2 | H2A—N2—H2B | 120.0 |
| C2—C7—H7A | 120.2 | H1WA—O1W—H1WB | 105.1 |
| C9—C8—C12 | 116.5 (3) | ||
| O2—C1—C2—C3 | −9.5 (5) | C5—C4—C8—C9 | −55.5 (5) |
| O1—C1—C2—C3 | 171.0 (4) | C3—C4—C8—C9 | 124.6 (4) |
| O2—C1—C2—C7 | 167.5 (4) | C5—C4—C8—C12 | 126.5 (4) |
| O1—C1—C2—C7 | −11.9 (5) | C3—C4—C8—C12 | −53.5 (5) |
| C7—C2—C3—C4 | −1.1 (5) | C12—C8—C9—N1 | −0.6 (6) |
| C1—C2—C3—C4 | 176.0 (3) | C4—C8—C9—N1 | −178.7 (3) |
| C2—C3—C4—C5 | −0.4 (5) | N2—C10—C11—C12 | −179.2 (4) |
| C2—C3—C4—C8 | 179.6 (3) | N1—C10—C11—C12 | 0.7 (6) |
| C3—C4—C5—C6 | 1.5 (6) | C10—C11—C12—C8 | −1.3 (6) |
| C8—C4—C5—C6 | −178.5 (4) | C9—C8—C12—C11 | 1.2 (6) |
| C4—C5—C6—C7 | −1.1 (6) | C4—C8—C12—C11 | 179.3 (4) |
| C5—C6—C7—C2 | −0.5 (6) | N2—C10—N1—C9 | 179.9 (4) |
| C3—C2—C7—C6 | 1.5 (5) | C11—C10—N1—C9 | −0.1 (5) |
| C1—C2—C7—C6 | −175.6 (3) | C8—C9—N1—C10 | 0.0 (6) |
| D—H···A | D—H | H···A | D···A | D—H···A |
| N1—H1A···O1i | 0.86 | 1.87 | 2.715 (4) | 167 |
| N2—H2A···O2i | 0.86 | 1.95 | 2.803 (4) | 172 |
| N2—H2B···O1W | 0.86 | 2.19 | 2.915 (5) | 142 |
| O1W—H1WA···O2ii | 0.86 | 2.00 | 2.761 (5) | 147 |
| O1W—H1WB···O1iii | 0.87 | 2.16 | 2.928 (5) | 146 |
| Symmetry codes: (i) x−1, −y+1/2, z+1/2; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+1, −y, −z. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| N1—H1A···O1i | 0.86 | 1.87 | 2.715 (4) | 167.2 |
| N2—H2A···O2i | 0.86 | 1.95 | 2.803 (4) | 171.6 |
| N2—H2B···O1W | 0.86 | 2.19 | 2.915 (5) | 141.5 |
| O1W—H1WA···O2ii | 0.86 | 2.00 | 2.761 (5) | 146.9 |
| O1W—H1WB···O1iii | 0.87 | 2.16 | 2.928 (5) | 146.0 |
| Symmetry codes: (i) x−1, −y+1/2, z+1/2; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+1, −y, −z. |
Bruker (1999). SMART and SAINT. Bruker AXS Inc., Wisconsin, USA.
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Tang, L., Fu, F., Wu, Y. P., Hou, X. Y. & Gao, L. J. (2011). J. Coord. Chem. 64, 3146–3157.
Zhong, R. Q., Zou, R. Q., Du, M., Jiang, L., Yamada, T., Maruta, G., Takeda, S. & Xu, Q. (2008). CrystEngComm, 10, 605–613.
Multidentate bridging ligands containing functional groups such as the familiar pyridyl and/or carboxylate groups have proven to be among the most important types of organic ligands for the design and construction of coordination polymers exhibiting remarkable polymeric structural motifs due to their rich coordination modes (Tang et al., 2011; Zhong et al., 2008). We attempted to synthesize a ZnII complex with the ligand in hydrothermal synthesis conditions. However the title compound was obtained, its structure is reported here.
The asymmetric unit of the title compound, C12H10N2O2. H2O is composed of one 3-(6-Amino-pyridinium-3-yl)-benzoate acid molecule and one lattice water molecule. The dihedral angle between the mean planes of the benzene and pyridinium rings is 54.93 (1)°. The deprotonated carboxylate COO(O1—C1—O2) group is slightly twisted from the benzene ring by an angle of 11.61 (7)° between their mean planes (Fig. 1). Intermolecular O—H···O and N—H···O hydrogen-bonding interactions (Table 1) link adjacent molecules into a three-dimensional supramolecular network (Fig. 2).