metal-organic compounds
Dichlorido{2-[3-(dimethylammonio)propyliminomethyl]phenolato}zinc(II) hemihydrate
aKey Laboratory of Surface and Interface Science of Henan, School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China
*Correspondence e-mail: xuewen_zhu@126.com
The title complex, [ZnCl2(C12H18N2O)]·0.5H2O, is a mononuclear zinc(II) compound derived from the zwitterionic form of the Schiff base 2-[3-(dimethylamino)propyliminomethyl]phenol. The ZnII atom is four-coordinated by the imine N and the phenolate O atoms of the Schiff base ligand, and by two chloride ions, in a distorted tetrahedral coordination geometry. The dimethylammonio group is disordered over two positions with site occupancies of 0.51 (3) and 0.49 (3). In the there is also a disordered water molecule with a partial occupancy of 0.5. In the the water molecules are linked to the Schiff base complex molecules through intermolecular N—H⋯O hydrogen bonds. Molecules are further linked through additional intermolecular N—H⋯O hydrogen bonds, forming chains running along the b axis.
Related literature
For a general background on the chemistry of Schiff base complexes, see: Ali et al. (2008); Biswas et al. (2008); Chen et al. (2008); Darensbourg & Frantz (2007); Habibi et al. (2007); Kawamoto et al. (2008); Lipscomb & Sträter (1996); Tomat et al. (2007); Wu et al. (2008); Yuan et al. (2007). For related structures, see: Zhu & Yang (2008a,b,c,d); Qiu (2006a,b); Wei et al. (2007); Zhu et al. (2007).
Experimental
Crystal data
|
|
Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT; 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.
Supporting information
10.1107/S1600536808033977/rz2256sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808033977/rz2256Isup2.hkl
The Schiff base compound was prepared by the condensation of equimolar amounts of salicylaldehyde with N,N-dimethylpropane-1,3-diamine in a methanol solution. The complex was prepared by the following method: to an anhydrous methanol solution (5 ml) of ZnCl2 (13.7 mg, 0.1 mmol) was added a methanol solution (10 ml) of the Schiff base compound (20.6 mg, 0.1 mmol) with stirring. The mixture was stirred for 30 min at room temperature and filtered. Upon keeping the filtrate in air for a few days, colourless block-shaped crystals were formed at the bottom of the vessel on slow evaporation of the solvent.
H atoms bound to C and N atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C–H distances in the range 0.93–0.97 Å, N–H distances of 0.91 Å, and with Uiso(H) = 1.2Ueq(C,N) and 1.5Ueq(methyl C). The dimethylammmonium group is disordered over two distinct sites, with occupancies of 0.51 (3) and 0.49 (3), respectively. The lattice water molecule is also disordered, with an occupancy restrained to 0.50. The water H atoms were placed at calculated positions and refined with the O—H and H···H lengths constrained to 0.85 (1) and 1.37 (2) Å, respectively, and with the isotropic thermal parameter fixed at 0.08 Å2.
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); 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).[ZnCl2(C12H18N2O)]·0.5H2O | F(000) = 724 |
Mr = 351.58 | Dx = 1.482 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 3872 reflections |
a = 13.335 (2) Å | θ = 2.4–25.3° |
b = 16.384 (2) Å | µ = 1.89 mm−1 |
c = 7.212 (1) Å | T = 298 K |
V = 1575.7 (4) Å3 | Block, colorless |
Z = 4 | 0.23 × 0.23 × 0.22 mm |
Bruker APEXII CCD area-detector diffractometer | 3426 independent reflections |
Radiation source: fine-focus sealed tube | 2915 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.035 |
ω scans | θmax = 27.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −17→17 |
Tmin = 0.650, Tmax = 0.661 | k = −20→20 |
12635 measured reflections | l = −9→9 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.041 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.103 | w = 1/[σ2(Fo2) + (0.0381P)2 + 0.643P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max = 0.001 |
3426 reflections | Δρmax = 0.42 e Å−3 |
206 parameters | Δρmin = −0.40 e Å−3 |
4 restraints | Absolute structure: Flack (1983), 1569 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.03 (2) |
[ZnCl2(C12H18N2O)]·0.5H2O | V = 1575.7 (4) Å3 |
Mr = 351.58 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 13.335 (2) Å | µ = 1.89 mm−1 |
b = 16.384 (2) Å | T = 298 K |
c = 7.212 (1) Å | 0.23 × 0.23 × 0.22 mm |
Bruker APEXII CCD area-detector diffractometer | 3426 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 2915 reflections with I > 2σ(I) |
Tmin = 0.650, Tmax = 0.661 | Rint = 0.035 |
12635 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.103 | Δρmax = 0.42 e Å−3 |
S = 1.08 | Δρmin = −0.40 e Å−3 |
3426 reflections | Absolute structure: Flack (1983), 1569 Friedel pairs |
206 parameters | Absolute structure parameter: 0.03 (2) |
4 restraints |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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) | |
Zn1 | 0.73458 (3) | 1.10664 (2) | 1.00222 (10) | 0.04900 (15) | |
Cl1 | 0.59091 (11) | 1.09513 (7) | 1.1550 (2) | 0.0746 (4) | |
Cl2 | 0.86270 (14) | 1.03257 (11) | 1.1229 (3) | 0.1022 (5) | |
N1 | 0.7159 (3) | 1.0824 (2) | 0.7323 (5) | 0.0449 (7) | |
O1 | 0.7749 (2) | 1.21988 (16) | 0.9610 (4) | 0.0563 (8) | |
O2 | 0.9856 (5) | 0.9368 (4) | 0.1435 (12) | 0.0704 (18) | 0.50 |
C1 | 0.8128 (3) | 1.2011 (2) | 0.6371 (6) | 0.0488 (9) | |
C2 | 0.8218 (3) | 1.2425 (2) | 0.8055 (6) | 0.0464 (9) | |
C3 | 0.8817 (4) | 1.3118 (3) | 0.8081 (9) | 0.0656 (13) | |
H3 | 0.8897 | 1.3401 | 0.9189 | 0.079* | |
C4 | 0.9288 (4) | 1.3393 (3) | 0.6546 (10) | 0.0783 (16) | |
H4 | 0.9668 | 1.3868 | 0.6615 | 0.094* | |
C5 | 0.9217 (4) | 1.2989 (3) | 0.4892 (11) | 0.0835 (17) | |
H5 | 0.9564 | 1.3172 | 0.3853 | 0.100* | |
C6 | 0.8631 (4) | 1.2317 (3) | 0.4807 (8) | 0.0736 (14) | |
H6 | 0.8558 | 1.2049 | 0.3678 | 0.088* | |
C7 | 0.7537 (3) | 1.1280 (3) | 0.6068 (6) | 0.0506 (10) | |
H7 | 0.7423 | 1.1129 | 0.4843 | 0.061* | |
C8 | 0.6601 (3) | 1.0080 (2) | 0.6728 (7) | 0.0575 (11) | |
H8A | 0.5968 | 1.0053 | 0.7389 | 0.069* | |
H8B | 0.6455 | 1.0117 | 0.5413 | 0.069* | |
C9 | 0.7184 (4) | 0.9327 (3) | 0.7093 (7) | 0.0674 (13) | |
H9A | 0.6748 | 0.8858 | 0.6947 | 0.081* | |
H9B | 0.7419 | 0.9335 | 0.8365 | 0.081* | |
N2 | 0.8576 (13) | 0.8452 (7) | 0.543 (2) | 0.055 (4) | 0.51 (3) |
H2C | 0.8090 | 0.8071 | 0.5247 | 0.066* | 0.51 (3) |
C10 | 0.8059 (4) | 0.9240 (3) | 0.5831 (9) | 0.0800 (18) | 0.51 (3) |
H10A | 0.8570 | 0.9608 | 0.6296 | 0.096* | 0.51 (3) |
H10B | 0.7849 | 0.9456 | 0.4641 | 0.096* | 0.51 (3) |
C11 | 0.9122 (17) | 0.8214 (9) | 0.713 (4) | 0.091 (8) | 0.51 (3) |
H11A | 0.8683 | 0.8257 | 0.8176 | 0.137* | 0.51 (3) |
H11B | 0.9687 | 0.8569 | 0.7296 | 0.137* | 0.51 (3) |
H11C | 0.9351 | 0.7661 | 0.7008 | 0.137* | 0.51 (3) |
C12 | 0.9244 (10) | 0.8403 (9) | 0.389 (3) | 0.082 (6) | 0.51 (3) |
H12A | 0.9523 | 0.7864 | 0.3816 | 0.123* | 0.51 (3) |
H12B | 0.9775 | 0.8793 | 0.4036 | 0.123* | 0.51 (3) |
H12C | 0.8883 | 0.8519 | 0.2765 | 0.123* | 0.51 (3) |
N2' | 0.8443 (12) | 0.8327 (9) | 0.641 (4) | 0.071 (5) | 0.49 (3) |
H2'A | 0.7970 | 0.7970 | 0.5998 | 0.085* | 0.49 (3) |
C10' | 0.8059 (4) | 0.9240 (3) | 0.5831 (9) | 0.0800 (18) | 0.49 (3) |
H10C | 0.8566 | 0.9650 | 0.6072 | 0.096* | 0.49 (3) |
H10D | 0.7860 | 0.9265 | 0.4538 | 0.096* | 0.49 (3) |
C11' | 0.8661 (16) | 0.8106 (11) | 0.824 (4) | 0.101 (8) | 0.49 (3) |
H11D | 0.8812 | 0.7534 | 0.8288 | 0.152* | 0.49 (3) |
H11E | 0.8091 | 0.8220 | 0.9010 | 0.152* | 0.49 (3) |
H11F | 0.9228 | 0.8413 | 0.8668 | 0.152* | 0.49 (3) |
C12' | 0.9351 (17) | 0.8164 (14) | 0.534 (6) | 0.139 (12) | 0.49 (3) |
H12D | 0.9592 | 0.7626 | 0.5629 | 0.209* | 0.49 (3) |
H12E | 0.9855 | 0.8559 | 0.5658 | 0.209* | 0.49 (3) |
H12F | 0.9203 | 0.8199 | 0.4044 | 0.209* | 0.49 (3) |
H2A | 0.984 (7) | 0.973 (5) | 0.228 (11) | 0.080* | 0.50 |
H2B | 0.930 (4) | 0.911 (5) | 0.146 (15) | 0.080* | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0640 (3) | 0.0390 (2) | 0.0440 (2) | −0.00734 (18) | 0.0112 (3) | −0.0061 (3) |
Cl1 | 0.0750 (8) | 0.0720 (8) | 0.0768 (8) | −0.0113 (6) | 0.0324 (7) | −0.0094 (6) |
Cl2 | 0.1140 (13) | 0.1004 (11) | 0.0921 (11) | −0.0145 (9) | −0.0136 (10) | 0.0143 (9) |
N1 | 0.0476 (18) | 0.0393 (16) | 0.0478 (18) | 0.0030 (14) | 0.0062 (15) | −0.0058 (14) |
O1 | 0.0774 (18) | 0.0361 (12) | 0.055 (2) | −0.0102 (12) | 0.0190 (14) | −0.0142 (12) |
O2 | 0.056 (4) | 0.054 (4) | 0.102 (6) | 0.011 (3) | 0.005 (4) | 0.015 (4) |
C1 | 0.052 (2) | 0.0417 (19) | 0.053 (2) | 0.0019 (17) | 0.0052 (18) | 0.0038 (18) |
C2 | 0.051 (2) | 0.0308 (17) | 0.058 (2) | −0.0004 (16) | 0.0125 (19) | 0.0006 (16) |
C3 | 0.067 (3) | 0.042 (2) | 0.088 (4) | −0.008 (2) | 0.011 (3) | −0.014 (2) |
C4 | 0.064 (3) | 0.048 (2) | 0.123 (5) | −0.009 (2) | 0.031 (3) | 0.009 (3) |
C5 | 0.079 (3) | 0.072 (3) | 0.100 (4) | 0.002 (2) | 0.041 (4) | 0.019 (4) |
C6 | 0.088 (3) | 0.070 (3) | 0.063 (3) | 0.001 (2) | 0.030 (3) | 0.010 (3) |
C7 | 0.062 (3) | 0.049 (2) | 0.041 (2) | −0.0007 (18) | 0.0022 (19) | −0.0092 (19) |
C8 | 0.059 (3) | 0.046 (2) | 0.068 (3) | −0.0111 (19) | 0.001 (2) | −0.018 (2) |
C9 | 0.098 (4) | 0.043 (2) | 0.061 (3) | −0.021 (2) | −0.006 (3) | −0.010 (2) |
N2 | 0.070 (7) | 0.026 (3) | 0.069 (9) | −0.004 (3) | −0.020 (7) | −0.001 (5) |
C10 | 0.078 (3) | 0.037 (2) | 0.124 (5) | −0.002 (2) | −0.008 (3) | −0.020 (3) |
C11 | 0.085 (14) | 0.052 (7) | 0.136 (19) | 0.000 (7) | −0.051 (14) | 0.024 (9) |
C12 | 0.072 (8) | 0.049 (7) | 0.125 (14) | 0.020 (5) | 0.017 (9) | −0.028 (7) |
N2' | 0.067 (8) | 0.044 (7) | 0.101 (14) | 0.004 (5) | −0.006 (9) | −0.029 (8) |
C10' | 0.078 (3) | 0.037 (2) | 0.124 (5) | −0.002 (2) | −0.008 (3) | −0.020 (3) |
C11' | 0.094 (12) | 0.051 (8) | 0.16 (2) | 0.014 (8) | −0.054 (13) | −0.027 (10) |
C12' | 0.094 (12) | 0.127 (16) | 0.20 (4) | 0.010 (12) | 0.068 (19) | −0.002 (19) |
Zn1—O1 | 1.954 (3) | C9—C10 | 1.487 (8) |
Zn1—N1 | 2.003 (4) | C9—H9A | 0.9700 |
Zn1—Cl1 | 2.2182 (13) | C9—H9B | 0.9700 |
Zn1—Cl2 | 2.2692 (18) | N2—C12 | 1.430 (19) |
N1—C7 | 1.277 (6) | N2—C11 | 1.47 (2) |
N1—C8 | 1.491 (5) | N2—C10 | 1.491 (15) |
O1—C2 | 1.336 (5) | N2—H2C | 0.9100 |
O2—H2A | 0.852 (10) | C10—H10A | 0.9700 |
O2—H2B | 0.848 (10) | C10—H10B | 0.9700 |
C1—C2 | 1.396 (6) | C11—H11A | 0.9600 |
C1—C6 | 1.405 (6) | C11—H11B | 0.9600 |
C1—C7 | 1.451 (6) | C11—H11C | 0.9600 |
C2—C3 | 1.389 (6) | C12—H12A | 0.9600 |
C3—C4 | 1.350 (8) | C12—H12B | 0.9600 |
C3—H3 | 0.9300 | C12—H12C | 0.9600 |
C4—C5 | 1.368 (9) | N2'—C11' | 1.40 (3) |
C4—H4 | 0.9300 | N2'—C12' | 1.46 (2) |
C5—C6 | 1.352 (7) | N2'—H2'A | 0.9100 |
C5—H5 | 0.9300 | C11'—H11D | 0.9600 |
C6—H6 | 0.9300 | C11'—H11E | 0.9600 |
C7—H7 | 0.9300 | C11'—H11F | 0.9600 |
C8—C9 | 1.481 (7) | C12'—H12D | 0.9600 |
C8—H8A | 0.9700 | C12'—H12E | 0.9600 |
C8—H8B | 0.9700 | C12'—H12F | 0.9600 |
O1—Zn1—N1 | 94.29 (13) | C10—C9—H9B | 109.1 |
O1—Zn1—Cl1 | 113.19 (9) | H9A—C9—H9B | 107.8 |
N1—Zn1—Cl1 | 111.04 (11) | C12—N2—C11 | 108.9 (14) |
O1—Zn1—Cl2 | 111.03 (11) | C12—N2—C10 | 119.2 (9) |
N1—Zn1—Cl2 | 111.10 (11) | C11—N2—C10 | 107.3 (12) |
Cl1—Zn1—Cl2 | 114.48 (7) | C12—N2—H2C | 106.9 |
C7—N1—C8 | 118.1 (4) | C11—N2—H2C | 106.9 |
C7—N1—Zn1 | 121.6 (3) | C10—N2—H2C | 106.9 |
C8—N1—Zn1 | 120.3 (3) | C9—C10—N2 | 124.4 (8) |
C2—O1—Zn1 | 121.3 (2) | C9—C10—H10A | 106.2 |
H2A—O2—H2B | 108 (3) | N2—C10—H10A | 106.2 |
C2—C1—C6 | 119.0 (4) | C9—C10—H10B | 106.2 |
C2—C1—C7 | 125.4 (4) | N2—C10—H10B | 106.2 |
C6—C1—C7 | 115.6 (4) | H10A—C10—H10B | 106.4 |
O1—C2—C3 | 119.0 (4) | N2—C11—H11A | 109.5 |
O1—C2—C1 | 123.7 (3) | N2—C11—H11B | 109.5 |
C3—C2—C1 | 117.2 (4) | H11A—C11—H11B | 109.5 |
C4—C3—C2 | 122.0 (5) | N2—C11—H11C | 109.5 |
C4—C3—H3 | 119.0 | H11A—C11—H11C | 109.5 |
C2—C3—H3 | 119.0 | H11B—C11—H11C | 109.5 |
C3—C4—C5 | 121.4 (5) | N2—C12—H12A | 109.5 |
C3—C4—H4 | 119.3 | N2—C12—H12B | 109.5 |
C5—C4—H4 | 119.3 | H12A—C12—H12B | 109.5 |
C6—C5—C4 | 118.3 (5) | N2—C12—H12C | 109.5 |
C6—C5—H5 | 120.8 | H12A—C12—H12C | 109.5 |
C4—C5—H5 | 120.8 | H12B—C12—H12C | 109.5 |
C5—C6—C1 | 122.0 (6) | C11'—N2'—C12' | 106.1 (19) |
C5—C6—H6 | 119.0 | C11'—N2'—H2'A | 106.6 |
C1—C6—H6 | 119.0 | C12'—N2'—H2'A | 106.6 |
N1—C7—C1 | 126.2 (4) | N2'—C11'—H11D | 109.5 |
N1—C7—H7 | 116.9 | N2'—C11'—H11E | 109.5 |
C1—C7—H7 | 116.9 | H11D—C11'—H11E | 109.5 |
C9—C8—N1 | 111.5 (4) | N2'—C11'—H11F | 109.5 |
C9—C8—H8A | 109.3 | H11D—C11'—H11F | 109.5 |
N1—C8—H8A | 109.3 | H11E—C11'—H11F | 109.5 |
C9—C8—H8B | 109.3 | N2'—C12'—H12D | 109.5 |
N1—C8—H8B | 109.3 | N2'—C12'—H12E | 109.5 |
H8A—C8—H8B | 108.0 | H12D—C12'—H12E | 109.5 |
C8—C9—C10 | 112.6 (4) | N2'—C12'—H12F | 109.5 |
C8—C9—H9A | 109.1 | H12D—C12'—H12F | 109.5 |
C10—C9—H9A | 109.1 | H12E—C12'—H12F | 109.5 |
C8—C9—H9B | 109.1 |
D—H···A | D—H | H···A | D···A | D—H···A |
N2′—H2′A···O1i | 0.91 | 1.88 | 2.762 (14) | 164 |
N2—H2C···O1i | 0.91 | 1.87 | 2.773 (12) | 170 |
Symmetry code: (i) −x+3/2, y−1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [ZnCl2(C12H18N2O)]·0.5H2O |
Mr | 351.58 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 298 |
a, b, c (Å) | 13.335 (2), 16.384 (2), 7.212 (1) |
V (Å3) | 1575.7 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.89 |
Crystal size (mm) | 0.23 × 0.23 × 0.22 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.650, 0.661 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12635, 3426, 2915 |
Rint | 0.035 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.103, 1.08 |
No. of reflections | 3426 |
No. of parameters | 206 |
No. of restraints | 4 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.42, −0.40 |
Absolute structure | Flack (1983), 1569 Friedel pairs |
Absolute structure parameter | 0.03 (2) |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2'—H2'A···O1i | 0.91 | 1.88 | 2.762 (14) | 164 |
N2—H2C···O1i | 0.91 | 1.87 | 2.773 (12) | 170 |
Symmetry code: (i) −x+3/2, y−1/2, z−1/2. |
References
Ali, H. M., Mohamed Mustafa, M. I., Rizal, M. R. & Ng, S. W. (2008). Acta Cryst. E64, m718–m719. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Biswas, C., Drew, M. G. B. & Ghosh, A. (2008). Inorg. Chem. 47, 4513–4519. Web of Science CSD CrossRef PubMed CAS Google Scholar
Bruker (2004). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Chen, Z., Morimoto, H., Matsunaga, S. & Shibasaki, M. (2008). J. Am. Chem. Soc. 130, 2170–2171. Web of Science CSD CrossRef PubMed CAS Google Scholar
Darensbourg, D. J. & Frantz, E. B. (2007). Inorg. Chem. 46, 5967–5978. Web of Science CSD CrossRef PubMed CAS Google Scholar
Flack, H. D. (1983). Acta Cryst. A39, 876–881. CrossRef CAS Web of Science IUCr Journals Google Scholar
Habibi, M. H., Askari, E., Chantrapromma, S. & Fun, H.-K. (2007). Acta Cryst. E63, m2905–m2906. Web of Science CSD CrossRef IUCr Journals Google Scholar
Kawamoto, T., Nishiwaki, M., Tsunekawa, Y., Nozaki, K. & Konno, T. (2008). Inorg. Chem. 47, 3095–3104. Web of Science CSD CrossRef PubMed CAS Google Scholar
Lipscomb, W. N. & Sträter, N. (1996). Chem. Rev. 96, 2375–2434. CrossRef PubMed CAS Web of Science Google Scholar
Qiu, X.-Y. (2006a). Acta Cryst. E62, m717–m718. Web of Science CSD CrossRef IUCr Journals Google Scholar
Qiu, X.-Y. (2006b). Acta Cryst. E62, m2173–m2174. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Tomat, E., Cuesta, L., Lynch, V. M. & Sessler, J. L. (2007). Inorg. Chem. 46, 6224–6226. Web of Science CSD CrossRef PubMed CAS Google Scholar
Wei, Y.-J., Wang, F.-W. & Zhu, Q.-Y. (2007). Acta Cryst. E63, m654–m655. Web of Science CSD CrossRef IUCr Journals Google Scholar
Wu, J.-C., Liu, S.-X., Keene, T. D., Neels, A., Mereacre, V., Powell, A. K. & Decurtins, S. (2008). Inorg. Chem. 47, 3452–3459. Web of Science CSD CrossRef PubMed CAS Google Scholar
Yuan, M., Zhao, F., Zhang, W., Wang, Z.-M. & Gao, S. (2007). Inorg. Chem. 46, 11235–11242. Web of Science CSD CrossRef PubMed CAS Google Scholar
Zhu, Q.-Y., Wei, Y.-J. & Wang, F.-W. (2007). Acta Cryst. E63, m1431–m1432. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhu, X.-W. & Yang, X.-Z. (2008a). Acta Cryst. E64, m1090–m1091. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhu, X.-W. & Yang, X.-Z. (2008b). Acta Cryst. E64, m1092–m1093. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhu, X.-W. & Yang, X.-Z. (2008c). Acta Cryst. E64, m1094–m1095. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhu, X.-W. & Yang, X.-Z. (2008d). Acta Cryst. E64, m1096–m1097. Web of Science CSD CrossRef IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Schiff bases have widely been used as versatile ligands in coordination chemistry (Biswas et al., 2008; Wu et al., 2008; Kawamoto et al., 2008; Ali et al., 2008; Habibi et al., 2007), and their metal complexes are of great interest in many fields (Chen et al., 2008; Yuan et al., 2007; Tomat et al., 2007; Darensbourg & Frantz, 2007). Zinc(II) is an important element in biological systems and functions as an active site of hydrolytic enzymes, such as carboxypeptidase and carbonic anhydrase where it is in a hard-donor coordination environment of nitrogen and oxygen ligands (Lipscomb & Sträter, 1996). Recently, we have reported some Schiff base complexes (Zhu & Yang, 2008a,b,c,d). In this paper, the synthesis and structural characterization of a new zinc(II) complex (Fig. 1) of the Schiff base ligand 2-[(3-dimethylaminopropylimino)methyl]phenol is reported.
The zinc(II) atom in the title compound is four-coordinated by the imine N and phenolate O atoms of the zwitterionic form of the Schiff base ligand, and by two Cl- ions in a tetrahedral coordination geometry. The coordinate bond lengths (Table 1) are typical and comparable to the corresponding values observed in other similar zinc(II) Schiff base complexes (Zhu et al., 2007; Wei et al., 2007; Qiu, 2006a,b).
In the crystal structure, the water molecules are linked to the Schiff base complex molecules through intermolecular N–H···O hydrogen bonds (Table 2). The molecules are further linked through intermolecular N–H···O hydrogen bonds (Table 2), forming chains running along the b axis (Fig. 2).