Mo(CO)4(pip)(L2P). The further thermal reactions of W(CO)4(pip)(L1CO), W(CO)4(pip)(L2CO) and Mo(CO)4(pip)(L2P) with phosphines or phosphite results in the substitution of the piperidine ligand and formation of W(CO)4(PMe2Ph)(L1CO), W(CO)4(PMe2Ph)(L2CO), Mo(CO)4(P(OMe)3)(L2P) and Mo (CO)4(PMe3)(L2P). Complexes are characterised by IR, 1H and 31P1H} NMR spectroscopy. The cone angle for L1CO is determined to be 155±
M的(CO)的反应6 M =
铬,
钼,W和Mo(η 6 -PhPPh 2)(
DPPE)(L),
DPPE = PPH 2 CH 2 CH 2 PPH 2,L = CO,(大号1 CO),L = PMe 3,在光解下的苯中(L 1 P)导致以下二聚体物种M(CO)5(L 2 CO)和M(CO)5(L 1 P)。此处供体配合物的游离
磷配位为M(CO)5没有形成
金属-
金属键;CottonKraihanzel力常数分析表明,电子给体能力的排序为L 2 P > L 1 CO > PPh 3。类似地处理该新的复合物的Mo(η 6 -PhPMePh)(
DPPE)(P(OME)3),(大号2 P)以Mo(CO)6下光解给出了二聚体的Mo(CO)5(大号2 P)。加热配合物的单个溶液大号1 CO,大号1 P的Mo(η 6 -PhPMePh)(
DPPE)(CO),(大号在
化学计量当量的M(CO) 4(pip) 2(M