Dichloridobis{2-[(triphenylmethyl)amino]pyridine-κN}cadmium(II)

In the molecule of the title compound, [CdCl2(C24H20N2)2], the CdII centre has a distorted tetrahedral coordination geometry defined by two chloride ions and two pyridine N atoms of the monodentate 2-[(triphenylmethyl)amino]pyridine ligands. Weak intramolecular N—H⋯Cl hydrogen bonds help to establish the three-dimensional architecture.

In the molecule of the title compound, [CdCl 2 (C 24 H 20 N 2 ) 2 ], the Cd II centre has a distorted tetrahedral coordination geometry defined by two chloride ions and two pyridine N atoms of the monodentate 2-[(triphenylmethyl)amino]pyridine ligands. Weak intramolecular N-HÁ Á ÁCl hydrogen bonds help to establish the three-dimensional architecture.
In the molecule of the title compound, (I), (Fig. 1) C d atom adopts a distorted tetrahedral coordination geometry with two chloride ions and two N atoms of the pyridine rings of the monodentate 2-[N-(triphenylmethyl)imino]pyridine ligands ( Table 1). Because of the large volume of the 2-[N-(triphenylmethyl)imino]-pyridine ligand, the formation of a four-coordinate complex is more possible rather than six-coordinate one. Weak intramolecular N-H···Cl hydrogen bonds (Table 2) help to establish the three-dimensional architecture.
As shown in Fig. 2, the complex molecules stack in the A-B-A-B sequence along the b axis.

Figure 1
The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 15% probability level. Hydrogen atoms have been omitted for clarity.  A packing diagram of (I). Hydrogen atoms have been omitted for clarity.

Dichloridobis{2-[(triphenylmethyl)amino]pyridine-κN}cadmium(II)
Crystal data [CdCl 2 (C 24 Special details 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 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. Rfactors 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.