L = PMe3, PMe2Ph, P(OMe)2Ph, or AsMe2Ph] are described. I.r. and n.m.r. spectral data and dipole moment results are given and discussed. The methyl resonance patterns of the tertiary phosphine or phosphonite complexes are not particularly useful in determining stereochemistry since they are of the type corresponding to intermediate phosphorus–phosphorus coupling.
[M(CO)6– x L x ] [M = Cr,Mo或W;x = 1、2或3; 描述了L = PMe 3,PMe 2 Ph,P(OMe)2 Ph或AsMe 2 Ph]。给出并讨论了Ir和nmr光谱数据以及偶极矩结果。在确定立体
化学方面,叔膦或
亚膦酸酯复合物的甲基共振模式不是特别有用,因为它们的类型对应于中间的
磷-
磷偶联。