Crystal structure of bis(dithiobenzoato)zinc(II): a structure containing two four-membered chelate rings

Abstract

The crystal and molecular structure of the title compound has been determined from Photographic X-ray data by Patterson and Fourier methods and refined by anisotropic least-squares methods to R 0·071 for 1200 observed reflections. The presence of two four-membered rings in the monomeric unit and the resulting severe distortion of the zinc co-ordination tetrahedron proves that conjugation on the whole ligand molecule is a determining factor in allowing such chelation to exist.

The crystals are triclinic, space group P with Z= 2 in a unit cell of dimensions a= 8·804 ± 0·01, b= 8·123 ± 0·01, c= 11·208 ± 0·01 Å, α= 87° 35′± 10′, β= 111° 2′± 10′, γ= 90° 32′± 10′.