metal-organic compounds
Chlorido(pyridine-2-carboximidamide-κ2N1,N2)zinc(II) chloride dihydrate
aJinzhong Vocational & Technical College, Yuci 030600, People's Republic of China, and bSchool of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, People's Republic of China
*Correspondence e-mail: lxf7777@sxu.edu.cn
In the title salt, [ZnCl(C6H7N3)2]Cl·2H2O, the pyridine-2-carboximidamide ligands chelate to the ZnII atom, which is also coordinated by a Cl atom. The ZnII atom shows a trigonal–bipyramidal coordination, with the pyridyl N atoms occupying the axial positions. The cation, anion and water molecules are linked by N—H⋯Cl, N—H⋯O, O—H⋯Cl and O—H⋯O hydrogen bonds into a three-dimensional structure.
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL/PC (Sheldrick, 2008); software used to prepare material for publication: SHELXTL/PC.
Supporting information
https://doi.org/10.1107/S1600536810045848/ng5060sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810045848/ng5060Isup2.hkl
Synthesis: Zinc chloride 0.221 g (1.5 mmol) was added to the solution of LiN(SiMe3)2 (3.0 mmol) and 2-cyanopyridine(0.30 ml, 3.0 mmol) in thf (30 ml) at 195 K. The mixture was stirred for 12 h at ambient temperature, then filtered. The filtrate was concentrated and the residue was crystallized from ethanol at ambient temperature, yielding colorless crystal [ZnCl(C6H7N3)2]Cl.2H2O(0.28 g, 42%). 1H NMR([D6]DMSO): 7.56(s, 4H, NH), 7.94 (d, J 4.4 Hz, 8H, pyridyl) and 8.73 (d, J 4.4 Hz, 8H, pyridyl). mp 506–507 K.
The water H atoms were found by using fourier difference map and constrained to their related atoms, with O—H distances in the range 0.82 Å and Uiso(H) = 1.5Ueq(O). The other H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H distances in the range 0.93 Å and Uiso(H) = 1.2Ueq(C), N—H distances in the range 0.86 Å and Uiso(H) = 1.2Ueq(N),
The zinc ion is coordinated via two nitrogen of the ligand, two five rings of N1—C1—C2—N3—Zn1 and N4—C7—C8—N6—Zn1 are formed. The torsion angle between the two five-membered rings is 168.41°. The bond lengthes of Zn1—N1 and Zn1—N3 of the compound are 1.980 (3) and 2.201 (3) Å, respectively. The coordination geometry of Zn2+ is distorted tetragonal pyramid. This is comparable to the compound 7 reported by Karlin group (Li et al., 2006), which can provide three nitrogen and two oxygen to coordination zinc(II), the average bond length of Zn—N is 2.104 (3) Å. There are four types of hydrogen bond, namely O···H—N, Cl···H—N and O···H—O, Cl···H—O, in the packing structure. These multi hydrogen bond are due to the chloride anions and exogenous water molecules existed in the interspace of compound. By the interactions of hydrogen bond, the infinite three dimensional structure is formed.
For a related compound with a similar coordination mode, see: Li et al. (2006).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL/PC (Sheldrick, 2008); software used to prepare material for publication: SHELXTL/PC (Sheldrick, 2008).Fig. 1. The cation structure, showing the atom-numbering scheme. Displacement ellipsoids were drawn at the 30% probability level. |
[ZnCl(C6H7N3)2]Cl·2H2O | Z = 2 |
Mr = 414.59 | F(000) = 424 |
Triclinic, P1 | Dx = 1.555 Mg m−3 |
a = 7.1658 (14) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 9.7120 (18) Å | Cell parameters from 1653 reflections |
c = 13.233 (3) Å | θ = 2.6–25.1° |
α = 92.225 (3)° | µ = 1.71 mm−1 |
β = 96.138 (3)° | T = 293 K |
γ = 104.302 (3)° | Block, colorless |
V = 885.3 (3) Å3 | 0.30 × 0.25 × 0.20 mm |
Bruker SMART CCD diffractometer | 3026 independent reflections |
Radiation source: fine-focus sealed tube | 2575 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.017 |
ω scans | θmax = 25.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −8→8 |
Tmin = 0.629, Tmax = 0.727 | k = −11→11 |
3618 measured reflections | l = −15→13 |
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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0652P)2 + 0.0845P] where P = (Fo2 + 2Fc2)/3 |
3026 reflections | (Δ/σ)max = 0.001 |
208 parameters | Δρmax = 0.44 e Å−3 |
0 restraints | Δρmin = −0.42 e Å−3 |
[ZnCl(C6H7N3)2]Cl·2H2O | γ = 104.302 (3)° |
Mr = 414.59 | V = 885.3 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.1658 (14) Å | Mo Kα radiation |
b = 9.7120 (18) Å | µ = 1.71 mm−1 |
c = 13.233 (3) Å | T = 293 K |
α = 92.225 (3)° | 0.30 × 0.25 × 0.20 mm |
β = 96.138 (3)° |
Bruker SMART CCD diffractometer | 3026 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2575 reflections with I > 2σ(I) |
Tmin = 0.629, Tmax = 0.727 | Rint = 0.017 |
3618 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 1.11 | Δρmax = 0.44 e Å−3 |
3026 reflections | Δρmin = −0.42 e Å−3 |
208 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 | ||
Zn1 | 0.56451 (5) | 0.85104 (4) | 0.73653 (3) | 0.04193 (17) | |
Cl1 | 0.84868 (13) | 0.83366 (11) | 0.67568 (7) | 0.0547 (3) | |
N1 | 0.4601 (4) | 0.7076 (3) | 0.8321 (2) | 0.0471 (7) | |
H1A | 0.3837 | 0.6272 | 0.8087 | 0.056* | |
N2 | 0.4396 (5) | 0.6468 (3) | 0.9992 (2) | 0.0500 (7) | |
H2A | 0.3596 | 0.5656 | 0.9812 | 0.060* | |
H2B | 0.4767 | 0.6715 | 1.0627 | 0.060* | |
N3 | 0.6905 (4) | 0.9590 (3) | 0.8866 (2) | 0.0376 (6) | |
C1 | 0.5059 (5) | 0.7339 (3) | 0.9290 (2) | 0.0394 (7) | |
C2 | 0.6376 (4) | 0.8761 (3) | 0.9628 (2) | 0.0354 (7) | |
C3 | 0.7007 (5) | 0.9224 (4) | 1.0639 (3) | 0.0431 (8) | |
H3A | 0.6638 | 0.8638 | 1.1160 | 0.052* | |
C4 | 0.8217 (5) | 1.0602 (4) | 1.0854 (3) | 0.0490 (9) | |
H4A | 0.8666 | 1.0938 | 1.1526 | 0.059* | |
C5 | 0.8737 (5) | 1.1449 (4) | 1.0082 (3) | 0.0481 (9) | |
H5A | 0.9523 | 1.2369 | 1.0215 | 0.058* | |
C6 | 0.8061 (5) | 1.0899 (4) | 0.9094 (3) | 0.0440 (8) | |
H6A | 0.8428 | 1.1466 | 0.8563 | 0.053* | |
N4 | 0.4526 (4) | 1.0103 (3) | 0.6875 (2) | 0.0439 (7) | |
H4B | 0.4771 | 1.0895 | 0.7238 | 0.053* | |
N5 | 0.2741 (4) | 1.0951 (3) | 0.5595 (2) | 0.0521 (8) | |
H5B | 0.3001 | 1.1789 | 0.5896 | 0.063* | |
H5C | 0.2024 | 1.0767 | 0.5018 | 0.063* | |
N6 | 0.3721 (4) | 0.7541 (3) | 0.5968 (2) | 0.0433 (7) | |
C7 | 0.3450 (5) | 0.9937 (4) | 0.6023 (2) | 0.0395 (7) | |
C8 | 0.2952 (4) | 0.8486 (4) | 0.5478 (2) | 0.0404 (8) | |
C9 | 0.1806 (5) | 0.8141 (4) | 0.4551 (3) | 0.0532 (9) | |
H9A | 0.1276 | 0.8811 | 0.4222 | 0.064* | |
C10 | 0.1473 (6) | 0.6754 (5) | 0.4125 (3) | 0.0641 (11) | |
H10A | 0.0700 | 0.6483 | 0.3504 | 0.077* | |
C11 | 0.2283 (6) | 0.5785 (5) | 0.4621 (3) | 0.0643 (11) | |
H11A | 0.2096 | 0.4864 | 0.4337 | 0.077* | |
C12 | 0.3374 (6) | 0.6215 (4) | 0.5547 (3) | 0.0544 (9) | |
H12A | 0.3895 | 0.5557 | 0.5896 | 0.065* | |
O1 | 0.8460 (6) | 0.5476 (4) | 0.8055 (3) | 0.1095 (13) | |
H1C | 0.8918 | 0.6026 | 0.7637 | 0.164* | |
H1D | 0.7433 | 0.4933 | 0.7795 | 0.164* | |
O2 | 1.1203 (5) | 0.4197 (3) | 0.8929 (3) | 0.0831 (9) | |
H2C | 1.0437 | 0.4653 | 0.8687 | 0.125* | |
H2D | 1.1647 | 0.3878 | 0.8443 | 0.125* | |
Cl2 | 0.41075 (19) | 0.34820 (11) | 0.74501 (8) | 0.0690 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0489 (3) | 0.0424 (3) | 0.0349 (3) | 0.01345 (18) | 0.00115 (17) | 0.00644 (16) |
Cl1 | 0.0507 (5) | 0.0773 (7) | 0.0398 (5) | 0.0231 (5) | 0.0043 (4) | 0.0085 (4) |
N1 | 0.0593 (18) | 0.0356 (15) | 0.0403 (17) | 0.0031 (13) | 0.0005 (13) | 0.0015 (12) |
N2 | 0.068 (2) | 0.0389 (16) | 0.0420 (17) | 0.0115 (14) | 0.0069 (14) | 0.0090 (13) |
N3 | 0.0405 (14) | 0.0374 (15) | 0.0357 (15) | 0.0117 (12) | 0.0031 (11) | 0.0043 (11) |
C1 | 0.0448 (18) | 0.0355 (18) | 0.043 (2) | 0.0175 (14) | 0.0080 (14) | 0.0073 (14) |
C2 | 0.0357 (16) | 0.0370 (17) | 0.0373 (17) | 0.0163 (13) | 0.0035 (13) | 0.0051 (13) |
C3 | 0.0460 (19) | 0.050 (2) | 0.0371 (18) | 0.0202 (16) | 0.0017 (14) | 0.0066 (15) |
C4 | 0.049 (2) | 0.056 (2) | 0.044 (2) | 0.0231 (17) | −0.0051 (16) | −0.0092 (17) |
C5 | 0.0380 (18) | 0.045 (2) | 0.059 (2) | 0.0105 (15) | 0.0011 (16) | −0.0051 (17) |
C6 | 0.0442 (18) | 0.0388 (19) | 0.048 (2) | 0.0086 (15) | 0.0070 (15) | 0.0065 (15) |
N4 | 0.0559 (17) | 0.0414 (16) | 0.0354 (16) | 0.0162 (13) | −0.0006 (13) | 0.0036 (12) |
N5 | 0.065 (2) | 0.0533 (19) | 0.0432 (17) | 0.0263 (15) | 0.0002 (14) | 0.0086 (14) |
N6 | 0.0460 (16) | 0.0441 (17) | 0.0389 (16) | 0.0111 (13) | 0.0015 (12) | 0.0041 (13) |
C7 | 0.0405 (17) | 0.0446 (19) | 0.0382 (19) | 0.0159 (14) | 0.0115 (14) | 0.0103 (14) |
C8 | 0.0345 (17) | 0.054 (2) | 0.0325 (17) | 0.0084 (15) | 0.0075 (13) | 0.0063 (15) |
C9 | 0.054 (2) | 0.064 (3) | 0.042 (2) | 0.0182 (18) | 0.0002 (16) | 0.0044 (18) |
C10 | 0.065 (3) | 0.075 (3) | 0.045 (2) | 0.012 (2) | −0.0090 (18) | −0.008 (2) |
C11 | 0.079 (3) | 0.053 (2) | 0.056 (3) | 0.012 (2) | 0.001 (2) | −0.009 (2) |
C12 | 0.064 (2) | 0.048 (2) | 0.051 (2) | 0.0149 (18) | 0.0012 (18) | 0.0043 (18) |
O1 | 0.119 (3) | 0.102 (3) | 0.112 (3) | 0.045 (2) | −0.011 (2) | 0.017 (2) |
O2 | 0.076 (2) | 0.075 (2) | 0.094 (2) | 0.0119 (17) | 0.0074 (17) | 0.0119 (18) |
Cl2 | 0.1080 (9) | 0.0486 (6) | 0.0525 (6) | 0.0233 (6) | 0.0097 (5) | 0.0055 (4) |
Zn1—N1 | 1.981 (3) | N4—C7 | 1.277 (4) |
Zn1—N4 | 2.009 (3) | N4—H4B | 0.8600 |
Zn1—N3 | 2.201 (3) | N5—C7 | 1.334 (4) |
Zn1—N6 | 2.210 (3) | N5—H5B | 0.8600 |
Zn1—Cl1 | 2.3095 (10) | N5—H5C | 0.8600 |
N1—C1 | 1.288 (4) | N6—C8 | 1.336 (4) |
N1—H1A | 0.8600 | N6—C12 | 1.337 (5) |
N2—C1 | 1.328 (4) | C7—C8 | 1.500 (5) |
N2—H2A | 0.8600 | C8—C9 | 1.382 (5) |
N2—H2B | 0.8600 | C9—C10 | 1.394 (6) |
N3—C6 | 1.338 (4) | C9—H9A | 0.9300 |
N3—C2 | 1.342 (4) | C10—C11 | 1.375 (6) |
C1—C2 | 1.489 (5) | C10—H10A | 0.9300 |
C2—C3 | 1.386 (5) | C11—C12 | 1.371 (5) |
C3—C4 | 1.403 (5) | C11—H11A | 0.9300 |
C3—H3A | 0.9300 | C12—H12A | 0.9300 |
C4—C5 | 1.362 (5) | O1—H1C | 0.8202 |
C4—H4A | 0.9300 | O1—H1D | 0.8235 |
C5—C6 | 1.382 (5) | O2—H2C | 0.8330 |
C5—H5A | 0.9300 | O2—H2D | 0.8300 |
C6—H6A | 0.9300 | ||
N1—Zn1—N4 | 127.46 (12) | C6—C5—H5A | 121.0 |
N1—Zn1—N3 | 77.12 (11) | N3—C6—C5 | 123.1 (3) |
N4—Zn1—N3 | 95.03 (11) | N3—C6—H6A | 118.4 |
N1—Zn1—N6 | 98.65 (11) | C5—C6—H6A | 118.4 |
N4—Zn1—N6 | 76.70 (11) | C7—N4—Zn1 | 119.8 (2) |
N3—Zn1—N6 | 165.87 (10) | C7—N4—H4B | 120.1 |
N1—Zn1—Cl1 | 116.09 (10) | Zn1—N4—H4B | 120.1 |
N4—Zn1—Cl1 | 116.45 (9) | C7—N5—H5B | 120.0 |
N3—Zn1—Cl1 | 98.33 (7) | C7—N5—H5C | 120.0 |
N6—Zn1—Cl1 | 95.63 (8) | H5B—N5—H5C | 120.0 |
C1—N1—Zn1 | 120.5 (2) | C8—N6—C12 | 119.0 (3) |
C1—N1—H1A | 119.8 | C8—N6—Zn1 | 112.2 (2) |
Zn1—N1—H1A | 119.8 | C12—N6—Zn1 | 128.6 (3) |
C1—N2—H2A | 120.0 | N4—C7—N5 | 124.7 (3) |
C1—N2—H2B | 120.0 | N4—C7—C8 | 116.8 (3) |
H2A—N2—H2B | 120.0 | N5—C7—C8 | 118.4 (3) |
C6—N3—C2 | 118.9 (3) | N6—C8—C9 | 122.3 (3) |
C6—N3—Zn1 | 129.3 (2) | N6—C8—C7 | 114.1 (3) |
C2—N3—Zn1 | 111.8 (2) | C9—C8—C7 | 123.6 (3) |
N1—C1—N2 | 125.1 (3) | C8—C9—C10 | 117.6 (4) |
N1—C1—C2 | 116.2 (3) | C8—C9—H9A | 121.2 |
N2—C1—C2 | 118.6 (3) | C10—C9—H9A | 121.2 |
N3—C2—C3 | 121.7 (3) | C11—C10—C9 | 120.1 (4) |
N3—C2—C1 | 114.4 (3) | C11—C10—H10A | 119.9 |
C3—C2—C1 | 123.9 (3) | C9—C10—H10A | 119.9 |
C2—C3—C4 | 118.1 (3) | C12—C11—C10 | 118.2 (4) |
C2—C3—H3A | 121.0 | C12—C11—H11A | 120.9 |
C4—C3—H3A | 121.0 | C10—C11—H11A | 120.9 |
C5—C4—C3 | 120.2 (3) | N6—C12—C11 | 122.7 (4) |
C5—C4—H4A | 119.9 | N6—C12—H12A | 118.6 |
C3—C4—H4A | 119.9 | C11—C12—H12A | 118.6 |
C4—C5—C6 | 118.0 (3) | H1C—O1—H1D | 109.8 |
C4—C5—H5A | 121.0 | H2C—O2—H2D | 107.0 |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl2 | 0.86 | 2.86 | 3.553 (3) | 138 |
N2—H2A···O2i | 0.86 | 2.13 | 2.942 (4) | 156 |
N2—H2B···Cl2ii | 0.86 | 2.61 | 3.434 (3) | 160 |
N4—H4B···Cl2iii | 0.86 | 2.68 | 3.432 (3) | 147 |
N5—H5B···Cl2iii | 0.86 | 2.51 | 3.295 (3) | 152 |
N5—H5C···Cl1iv | 0.86 | 2.56 | 3.289 (3) | 144 |
O1—H1C···Cl1 | 0.82 | 2.64 | 3.320 (4) | 142 |
O1—H1D···Cl2 | 0.82 | 2.44 | 3.237 (4) | 165 |
O2—H2D···Cl2v | 0.83 | 2.40 | 3.182 (4) | 157 |
O2—H2C···O1 | 0.83 | 1.92 | 2.753 (5) | 173 |
Symmetry codes: (i) x−1, y, z; (ii) −x+1, −y+1, −z+2; (iii) x, y+1, z; (iv) −x+1, −y+2, −z+1; (v) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | [ZnCl(C6H7N3)2]Cl·2H2O |
Mr | 414.59 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 7.1658 (14), 9.7120 (18), 13.233 (3) |
α, β, γ (°) | 92.225 (3), 96.138 (3), 104.302 (3) |
V (Å3) | 885.3 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.71 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.629, 0.727 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3618, 3026, 2575 |
Rint | 0.017 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.115, 1.11 |
No. of reflections | 3026 |
No. of parameters | 208 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.44, −0.42 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL/PC (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl2 | 0.86 | 2.86 | 3.553 (3) | 138.3 |
N2—H2A···O2i | 0.86 | 2.13 | 2.942 (4) | 156.2 |
N2—H2B···Cl2ii | 0.86 | 2.61 | 3.434 (3) | 159.7 |
N4—H4B···Cl2iii | 0.86 | 2.68 | 3.432 (3) | 146.8 |
N5—H5B···Cl2iii | 0.86 | 2.51 | 3.295 (3) | 151.9 |
N5—H5C···Cl1iv | 0.86 | 2.56 | 3.289 (3) | 143.7 |
O1—H1C···Cl1 | 0.82 | 2.64 | 3.320 (4) | 141.6 |
O1—H1D···Cl2 | 0.82 | 2.44 | 3.237 (4) | 164.9 |
O2—H2D···Cl2v | 0.83 | 2.40 | 3.182 (4) | 156.7 |
O2—H2C···O1 | 0.83 | 1.92 | 2.753 (5) | 172.7 |
Symmetry codes: (i) x−1, y, z; (ii) −x+1, −y+1, −z+2; (iii) x, y+1, z; (iv) −x+1, −y+2, −z+1; (v) x+1, y, z. |
Acknowledgements
This work was carried out under the sponsorship of the National Natural Science Foundation of China (No. 20872084).
References
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Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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The zinc ion is coordinated via two nitrogen of the ligand, two five rings of N1—C1—C2—N3—Zn1 and N4—C7—C8—N6—Zn1 are formed. The torsion angle between the two five-membered rings is 168.41°. The bond lengthes of Zn1—N1 and Zn1—N3 of the compound are 1.980 (3) and 2.201 (3) Å, respectively. The coordination geometry of Zn2+ is distorted tetragonal pyramid. This is comparable to the compound 7 reported by Karlin group (Li et al., 2006), which can provide three nitrogen and two oxygen to coordination zinc(II), the average bond length of Zn—N is 2.104 (3) Å. There are four types of hydrogen bond, namely O···H—N, Cl···H—N and O···H—O, Cl···H—O, in the packing structure. These multi hydrogen bond are due to the chloride anions and exogenous water molecules existed in the interspace of compound. By the interactions of hydrogen bond, the infinite three dimensional structure is formed.