Dichloridobis(pyridine-2-selenolato-κ2 N,Se)tin(IV)

Abstract

The title compound, [SnCl2(C5H4NSe)2], is the product of a reaction of 2,2′-dipyridyl diselenide with tin tetrachloride. The molecule is located about a twofold rotation axis. The coordination environment of the Sn IV atom is a distorted octahedron, with two bidentate 2-pyridineselenolate ligands inclined to each other at an angle of 83.96 (7)°. The two Sn - Cl and two Sn - N bonds are in cis configurations, while the two Sn - Se bonds of 2.5917 (3) Å are in a trans configuration, with an Se - Sn - Se angle of 157.988 (15)°. In the crystal, π-π interactions between the pyridine rings [centroid-to-centroid distance of 3.758 (3) Å] and weak intermolecular C - H...Cl hydrogen bonds link the molecules into chains along the c axis.