DINITROSYLMOLYBDENUM(0) COMPLEXES OF CATALYTIC AND ENVIRONMENTAL RELEVANCE

摘要

This paper reports the synthesis of a new series of novel hexacoordinated, mixed-ligand dinitrosyl complexes of molybdenum(0) of the compositions [Mo(NO)_2(L')_2] centre dot H_2O {where HL' = 4- butyryl-3-methyl-1-phenyl-2-pyrazoline-5-one (HL~1), N-(4'-butyrylidene-3'-methyl-1'-phenyl-2'-pyrazolin-5'-one)-0-phenitidine (HL~2) or N-(4'-butyrylidene-3'-methyl-1'-phenyl-2'-pyrazolin-5'-one)-0-phenylenediamine} and [{Mo(NO)_2}_2 (L~5)_2] centre dot H_2O (where H_2L~5' = N,N-(4'-butyrylidene-3'-methyl-1'-phenyl-2'-pyrazolin-5'-one)-m-phenylenediamine) in a single step directly from molybdate(VI). The resulting chelates, which have been characterized by elemental analyses, molar conductance, decomposition temperature, magnetic measurements, ~1H NMR, IR, and electronic spectral studies, and were found to contain low-spin Mo(0).