DINITROSYLMOLYBDENUM(0) COMPLEXES OF CATALYTIC AND ENVIRONMENTAL RELEVANCE: A NOVEL SINGLE-STEP SYNTHESIS OF DINITROSYLMOLYBDENUM(0) COMPLEXES OF {Mo(NO)2}6ELECTRON CONFIGURATION INVOLVING CHELATING LIGANDS DIRECTLY FROM MOLYBDATE(VI) AND THEIR CHARACTERIZATION
摘要:
This paper reports the synthesis of a new series of novel hexa-oordinated, mixed-ligand dinitrosyl complexes of molybdenum(0) of the compositions [Mo(NO)(2)(L')(2)].H2O {where HL' = 4-butyryl-3-methyl-1-phenyl-2-pyrazoline-5- one (HL1) N-(4'-butyrylidene-3'-methyl-1'-phenyl-2'-pyrazolin-5'-one)-o-phenitidine (HL2) or N(4'-buryrylidene-3'-methyl-1'-phenyl-2'-pyrazolin-5'-one)-p-anisidine (HL3)}, [Mo(NO)(2)(L-4)].H2O {where H2L5=N,N-(4'-buryrylidene-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, H-1 NMR, IR, and electronic spectral studies, and were found to contain low-spin Mo(0).