Synthesis, X-ray Diffraction, NMR and Thermolysis Studies of Cadmium Tin Sulfido Complexes

Abstract

Three molecular sulfido complexes containing a Cd-S-Sn structure motive, [{(tmeda)Cd}3(SnPh)2S6] (1), [{(tmeda)Cd}2(SnPh2)2S4] (2) and [{(iPr3P)Cd}3Cd4(SnPh2)6S13] (3), have been synthesized and characterized by single-crystal X-ray diffraction. So far, 2 is the first cadmium tin sulfido complex soluble in common organic solvents. Analysis by 113Cd and 119Sn NMR spectroscopy shows a slow rearrangement in solution, while spin coupling between the nuclei can be used to identify the species in solution. Thermolysis of 2 results in CdS and SnS as solid thermolysis products.

Keywords

• crystal structures
• thermolysis
• polynuclear complexes
• NMR spectroscopy