Dichlorido{2-[(2,6-dimethylphenyl)iminomethyl]pyridine-κ2 N,N′}zinc

In the asymmetric unit of the title compound, [ZnCl2(C14H14N2)], the central ZnII ion is four-coordinated in a distorted tetrahedral environment by two N atoms of the ligand 2-[(2,6-dimethylphenyl)iminomethyl]pyridine and two chloride anions. In the crystal, adjacent molecules are connected through C—H⋯Cl hydrogen bonds between a C—H group of the ligand and a Cl− anion, leading to a chain-like structure along the b direction.

In the asymmetric unit of the title compound, [ZnCl 2 -(C 14 H 14 N 2 )], the central Zn II ion is four-coordinated in a distorted tetrahedral environment by two N atoms of the ligand 2-[(2,6-dimethylphenyl)iminomethyl]pyridine and two chloride anions. In the crystal, adjacent molecules are connected through C-HÁ Á ÁCl hydrogen bonds between a C-H group of the ligand and a Cl À anion, leading to a chainlike structure along the b direction.

Experimental
Crystal data [ZnCl 2 (C 14 Table 1 Hydrogen-bond geometry (Å , ).  et al. 2011;Shi et al. 2010;Talei Bavil Olyai et al. 2008;Schulz et al. 2009) have been developed. In order to enrich this family type of compounds, we report the single-crystal growth and structure investigation of title compound [Zn(C 14 H 14 The molecular structure of the compound is shown in Fig. 1. The solid-state structure showed a distorted tetrahedral coordinate geometry formed by two N atoms from the ligand 2,6-dimethyl-N-(pyridine-2-ylmethylene)aniline and two chloride atoms, with the Zn-N distances of 2.071 (2) and 2.078 (2) Å and the Zn-Cl distances of 2.1972 (10) and 2.2135 (11) Å. On an over view (Fig. 2), the adjacent molecules were connected through the C-H···Cl inter-molecule hydrogen bonds between the C-H group of the ligand and the Cl atom, leading to a one-dimensional chain-like structure.

Experimental
A mixture of picolinaldehyde (0.0535 g, 0.5 mmol) and 2,6-dimethylaniline (0.0606 g, 0.5 mmol) was refluxed in CH 3 OH (20 ml) for 2 h, ZnCl 2 (0.0682 g, 0.5 mmol) was added and refluxed for another 30 min, then cooled to the room temperature gradually, yellow precipitates were obtained at this time, which were dissolved in the solution of DMSO (5 ml) and CH 3 OH (3 ml). After the evaporation process at room temperature for about 12 d, yellow crystals were got.

Refinement
X-ray data were collected on a APEX2 (Bruker, 2001).Semi-empirical absorption corrections were made using SADABS.
The structures were solved using direct methods, followed by full matrix least-squares refinement against F 2 (all data) using SHELXTL. Anisotropic refinement for all ordered non-H atoms; organic H atoms were placed in calculated positions.  The molecular structure of the title compound drawn with 50% ellipsoidal probability.

Figure 2
The one-dimensional chain-like structure connected through the C-H···Cl inter-molecule hydrogen bonds.

Dichlorido{2-[(2,6-dimethylphenyl)iminomethyl]pyridine-κ 2 N,N′}zinc
Crystal data Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > σ(F 2 ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.