Chemical shift correlations in the 13C, 17O and 31P NMR spectra of some Mo(CO)4((PPh2O)2Y(R)R′) (Y(R) = P(O), Si(Me); R′ = alkyl, haloalkyl, aryl) and [Mo(CO)4(PPh2O)2]2Si complexes

摘要: Abstract The syntheses and 13 C, 17 O, 29 Si 31 P NMR spectra of a series Mo(CO) 4 ((PPh 2 O) Y(R)R′) (Y(R) = P(O), Si(Me); R′=alkyl, haloalkyl, aryl) [Mo(CO) (PPh ] complexes are given. chemical shift ranges the cis trans carbonyl C phenyl C(1) resonances relatively large and, with exception O shifts, correlations between shifts various excellent. These consistent model metal proposed by Bodner Todd. In addition they allow to be extended include diphenylphosphinite in these complexes. excellent may due presence chelate ring which limits rotation around molybdenum-phosphorus bond fact that all three groups directly bonded phosphorus remains constant.