Hemilability of the primary amine–metal bond in polyamine-(Group 6) metal carbonyl complexes
作者:Anne-Cécile Hervé、Jean-Jacques Yaouanc、Jean-Claude Clément、Hervé des Abbayes、Loı̈c Toupet
DOI:10.1016/s0022-328x(02)01992-7
日期:2002.12
A series of cis-LM(CO)4 complexes was prepared by reaction of non symmetrical diamines (L=R1R2N–(CH2)n–NH2, with R1 and R2=alkyl groups) with metal carbonyls M(CO)6, (M=Cr, Mo, W). Only the primary amine of these complexes reacted with mono or dialdehydes, thus leading to mono or dinuclear imine complexes, stabilized by the metal moiety and strongly suggesting that the NH2–metal bond has a hemilabile
通过非对称二胺(L = R 1 R 2 N–(CH 2)n –NH 2,R 1和R 2 =烷基)与羰基金属的反应制备一系列顺式-LM(CO)4配合物M(CO)6,(M = Cr,Mo,W)。这些络合物中只有伯胺与单醛或二醛反应,从而生成单核或双核亚胺络合物,并由金属部分稳定并强烈表明NH 2-金属键具有半不稳定的特性。