名称:
Syntheses, IR and multinuclear (1H, 13C, 31P, 95Mo) NMR investigation of molybdenum and tungsten carbonyl complexes containing bidentate nitrogen donor ligands
摘要:
Complexes of the type [M(CO)(4)(N-N')] [where M = Mo or W; N-N' = C5H4NC(R)=NCH(R')Ph (R = H or Me; R' = H or Me); C9H7 NCH=NCH(R')Ph (R' = H or Me)] and [Mo(CO)(3)(PR(3)){C5H4NCH=NCH(Me)Ph}] [where PR(3) = PEt(3), PPh(3), P(OEt)(3), 4-ethyl-2,6,7-trioxa-1-phosphabicycle[2.2.2] octane have been synthesized. They were characterized by elemental analyses, IR and NMR (H-1, C-13, P-31, Mo-95) spectroscopy. The stereochemistry of these complexes has been discussed on the basis of NMR data. Separate Mo-95 resonances have been observed for the mer form and diastereomers of the fac isomer of [Mo(CO)(3)(PR(3)){C5H4NCH=NCH(Me)Ph}] complexes.