Bis[4-chloro-2-(iminomethyl)phenolato]nickel(II)

Zhe Hong

doi:10.1107/S1600536809004279

. 2009 Feb 13;65(Pt 3):m273. doi: 10.1107/S1600536809004279

Bis[4-chloro-2-(iminomethyl)phenolato]nickel(II)

Zhe Hong ^a,^*

PMCID: PMC2968681 PMID: 21582061

Abstract

In the title centrosymmetric mononuclear nickel(II) complex, [Ni(C₇H₅ClNO)₂], the Ni^II ion, lying on an inversion center, is four-coordinated by two O and two imine N atoms from two 4-chloro-2-iminomethylphenolate ligands, forming a distorted square-planar geometry. In the crystal structure, molecules are linked into a two-dimensional network parallel to the bc plane by C—H⋯O hydrogen bonds.

Related literature

For related structures, see: Hong (2007 ▶); Kamenar et al. (1990 ▶); Li et al. (2005 ▶, 2007 ▶); Zhou et al. (2004 ▶).

Experimental

Crystal data

[Ni(C₇H₅ClNO)₂]
M _r = 367.85
Monoclinic,
a = 15.775 (6) Å
b = 5.685 (2) Å
c = 7.894 (3) Å
β = 93.864 (18)°
V = 706.3 (5) Å³
Z = 2
Mo Kα radiation
μ = 1.76 mm⁻¹
T = 298 (2) K
0.18 × 0.17 × 0.17 mm

Data collection

Bruker SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996 ▶) T _min = 0.743, T _max = 0.755
4102 measured reflections
1532 independent reflections
1296 reflections with I > 2σ(I)
R _int = 0.029

Refinement

R[F ² > 2σ(F ²)] = 0.030
wR(F ²) = 0.084
S = 1.04
1532 reflections
100 parameters
1 restraint
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.45 e Å⁻³
Δρ_min = −0.30 e Å⁻³

Data collection: SMART (Bruker, 2002 ▶); cell refinement: SAINT (Bruker, 2002 ▶); 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.

Supplementary Material

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536809004279/ci2768sup1.cif

e-65-0m273-sup1.cif^{(13.2KB, cif)}

Structure factors: contains datablocks I. DOI: 10.1107/S1600536809004279/ci2768Isup2.hkl

e-65-0m273-Isup2.hkl^{(75.6KB, hkl)}

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C7—H7⋯O1ⁱ	0.93	2.54	3.318 (3)	142

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Symmetry code: (i) Inline graphic .

Acknowledgments

The author acknowledges Liaodong University for funding this study.

supplementary crystallographic information

Comment

Recently, the author has reported the crystal structure of a Schiff base nickel(II) complex (Hong, 2007). As an extension of the work on the structural investigation of nickel(II) complexes, the title complex is reported here.

The title compound is a centrosymmetric mononuclear nickel(II) complex (Fig. 1), which is similar to those reported previously (Kamenar et al., 1990). The Ni atom, lying on the inversion center, is four-coordinated by two O and two imine N atoms from two 4-chloro-2-iminomethylphenol ligands, forming a square-planar geometry. The bond lengths (Table 1) related to the metal centre are comparable to the values in similar nickel(II) complexes (Zhou et al., 2004; Li et al., 2005; Li et al., 2007).

In the crystal structure, the molecules are linked into a two-dimensional network parallel to the bc plane by C—H···O hydrogen bonds (Table 1).

Experimental

5-Chlorosalicylaldehyde (1.0 mmol, 156.6 mg) and Ni(CH₃COO)₂.4H₂O (0.5 mmol, 125.0 mg) were dissolved in methanol solution containing a small quantity of ammonia (30 ml). The mixture was stirred at room temperature for 30 min to give a clear brown solution. After keeping the solution in air for a few days, brown block-shaped crystals were formed.