C-N, C-S and S-S Bond Cleavage by Rhodium PCcarbene P Pincer Complexes.

Rhodium PCcarbene P complexes 1-L {L=PPh3 , PPh2 (C6 F5 )} react with isothiocyanate, carbodiimide and disulphide to enable C-S, C-N and S-S bond cleavage. The cleaved molecules are sequestered by the metal center and the pincer alkylidene linkage, forming η2 -coordinated sulfide or imide centered pincer complexes. When a C-S or S-S bond is cleaved, the resulting complexes can bridge two rhodium centers through sulphur forming dimeric complexes and eliminating a monodentate phosphine ligand.