AN IMPROVED METHOD FOR THE SYNTHESIS OF CATIONIC (ETA(5)-CYCLOPENTADIENYL) (ETA(3)-ALLYL)MO(CO)(NO) COMPLEXES - THE BENEFIT OF 1,2-DIMETHOXYETHANE AS A SOLVENT
In contrast to suggestions in the literature that ether solvents are incompatible with nitrosonium salts, treatment of (eta3-allyl)(eta5-cyclopentadienyl)dicarbonylmolybdenum complexes with solid NOPF6 in 1,2-dimethoxyethane at -10-degrees-C produces analytically pure [(eta3-allyl)carbonyl(eta5-cyclopentadienyl)nitrosylmolybdenum][PF6] as yellow solids.