Metal-Thio Complexes with M-S-P Linkages

1 Metal-Thio Complexes with M-S-P Linkages Known bis(thiophosphinyl) ligands include those of types  

Many complexes of these symmetrical ligands (often R = Ph) have been prepared. The function of such ligands may be unidentate as in Equation 9.590a, chelate bidentate as in Equation 9.590b,c, or bridging bidentate as in Equation 9.590d. 

Complexes such as Equation 9.591 can be prepared from thionophosphine sulphides and others from P4S10 [16]. 

Secondary bonding in some of these compounds leads to self-assembly into polymeric structures 

Mixed valency P -P diphosphorus compounds are known. With some of these, migration of the S atoms occurs on prolonged boiling in a suitable solvent. 

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