Adducts of molybdenum(V) trichloride sulphide
Abstract
The compound MoCl3S reacts with methyl cyanide to give MoCl3S,MeCN and MoCl3S,2MeCN, which have been characterised as containing six-co-ordinate molybdenum with bridging Mo–S–Mo and terminal MoS bonds respectively. The complex MoCl3S,2MeCN reacts with other ligands; 1,4-dioxan and 1,2-bis(methoxy)-ethane give adducts MoCl3S,2diox and MoCl3S,bme, while pyridine gives the salt [Hpy][MoCl4S,py] and 1,10-phenanthroline reduces molybdenum to the quadrivalent state in forming MoCl2S,phen. Direct reaction of MoCl3S with py gives MoCl3S,3py (one py being in the lattice). The salts WCl3S and MoCl3S did not react with any of the ligands tried even after prolonged reaction periods.