Bis(μ-thio­semicarbazide-κ3N1,S:S;κ3S:N1,S)bis­[(di­methyl­formamide-κO)(thio­semicarbazide-κ2N1,S)cadmium(II)] tetra­kis­(2,4,6-tri­nitro­phen­olate): synthesis, crystal structure and Hirshfeld surface analysis

Abstract

The complete binuclear cation of the title complex salt is generated by a crystallographic center of symmetry and features bridging S atoms.

In the title complex salt, [Cd₂(C₃H₇NO)₂(CH₅N₃S)₄](C₆H₂N₃O₇)₄, (I), the binuclear cation is located about a crystallographic center of symmetry. The asymmetric unit of the complex cation is composed of two bidentate thio­semicarbazide ligands and one mol­ecule of di­methyl­formamide coordinated to a cadmium(II) atom. The S atom of one of the thio­semicarbazide ligands bridges the cadmium atoms about the inversion center. The positive charge of the complex is balanced by picrate anions. In the crystal, the cation is linked to the picrate anions by side-by-side bifurcated N—H⋯(O,O) hydrogen bonds in which the central O atom acts as a double acceptor for two such bonds, enclosing R¹₂(6) and R²₁(6) ring motifs. In the crystal, further N—H⋯O hydrogen bonds link the various units to form slabs lying parallel to the (001) plane and the slabs are linked by C—H⋯O hydrogen bonds, thereby forming a three-dimensional network.