Crystal structure and Hirshfeld surface analysis of a zinc xanthate complex containing the 2,2 '-bipyriaine ligand

Abstract

In the title compound, (2,2'-bipyridine-kappa N-2,N')bis(2-methoxyethyl xanthato-kappa S)zinc(II), [Zn(C4H7O2S2)(2) (C10H8N2)], the Zn-II ion is coordinated to two N atoms of the 2,2'-bipyridine ligand and two S atoms from two 2-methoxyethyl xanthate ligands. The Zn-II ion lies on a crystallographic twofold rotation axis and has distorted tetrahedral coordination geometry. In the crystal, molecules are linked by weak C-H center dot center dot center dot O hydrogen bonds, forming supramolecular chains propagating along the a-axis direction. Weak intramolecular C-H center dot center dot center dot S hydrogen bonds are also observed. The intermolecular contacts in the crystal were further analysed using Hirshfield surface analysis, which indicates that the most significant contacts are H center dot center dot center dot H (36.3%), followed by S center dot center dot center dot H/H center dot center dot center dot S (24.7%), C center dot center dot center dot H/H center dot center dot center dot C (15.1%), O center dot center dot center dot H/H center dot center dot center dot O (14.4%), N center dot center dot center dot H/H center dot center dot center dot N (4.1%) and C center dot center dot center dot C (2.9%).