Preparation and crystal structure of a binuclear compound of methylmercury(II) containing bismuthiol I as a bridging ligand

Abstract

Solid [(HgMe)₂L](H₂L = 2,5-dimercapto-1,3,4-thiodiazole, bismuthiol I) has been isolated and its crystal structure determined. This compound crystallizes in the tetragonal space group l4₁/a(no. 88) with a= 21.600(6), c= 9.470(4)Å, and Z= 16 (R= 0.064, R′= 0.065). The ligand binds to the mercury atoms via its two exocyclic sulphur atoms, and secondary ligand–metal interactions are involved in the lattice structure.