A new diphosphinite derived from cyclohexane-1,4-diol: oxidation reactions, metal complexes, P-O bond cleavage and X-ray crystal structures of Ph2P(E)O(C6H10)OP(E)Ph2 (EÂ =Â S, Se)

The synthesis, derivatization and transition metal complexes of Ph2PO(C6H10)OPPh2 (1) are presented. The reaction of 1 with Mo(CO)6 in the presence of TMNO · 2H2O gives a cubane-shaped tetranuclear molybdenum(V) complex, [Mo4O4(μ3-O)4(μ-O2PPh2)4] (6) due to water assisted cleavage of P-O bonds.