Cadmium tri-tert-butoxysilanethiolates: Structural and spectroscopic models of metal sites in proteins

Syntheses and crystal structures of two molecular, heteroleptic cadmium(II) complexes are described. Bis(tri-tert-butoxysilanethiolate)(1-methylimidazole)cadmium(II) and bis(tri-tert-butoxysilanethiolate)bis(1-methylimidazole)cadmium(II) possess CdS2NO2 and CdS2N2 kernels. Solution 113Cd NMR and solid state CP MAS 13C, 29Si, 113Cd NMR data for the compounds are reported and compared with the results obtained for cadmium-substituted proteins.