Abstract
Binuclear diisopropyl and dicyclohexyl dithiophosphate cadmium complexes, namely, [Cd2{S2P(OR)2}4], were studied by high-resolution heteronuclear (13C, 31P, and 113Cd) NMR spectroscopy in the solid state in a temperature range from 295 to 378 K. 31P NMR signals for the terminal and bridging ligands of the complexes were differentiated. The experimental NMR spectra show 31Р–111,113Cd and 113Cd–31Р spin–spin couplings only for the terminal ligands. The chemical shift anisotropy δaniso and the asymmetry parameter η were calculated for 31P and 113Cd NMR signals. It was found that the 31P chemical shifts for the terminal and bridging dithiophosphato groups differ in anisotropy character.
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