Bis(benzoato-O)bis(thiourea-S)zinc(II)

Abstract

The title complex crystallizes from an aqueous solution containing sodium benzoate, zinc sulfate and thiourea in the ratio 2:1:2. The structure is molecular and contains two crystallographically different [Zn(C 6 H 5 COO) 2 {CS(NH 2 ) 2 ) 2 ] molecules. The coordination geometry of each Zn atom, by one O atom from each benzoate anion and by one S atom from each thiourea ligand, is that of a deformed tetrahedron [Zn-O 1.964 (2) and 1.963 (2) A; Zn-S 2.368 (1) and 2.366 (1) A; angles 103.25 (9)-126.6 (2) o ]. The Zn...O distances to the non-coordinated O atoms are long: 2.957 (3) (×2) and 2.955 (3) A (×2). Most of the H atoms of the amidic groups are involved in hydrogen bonds of the N-H...O type