Reactions of coordinated ligands II. Metal(0) carbonyl complexes with diphosphanes R(X)PP(X)R (R aryl; X Br, I, H, C4H9) as bridging ligands
作者:Anna-Maragarete Hinke、Axel Hinke、Wilhelm Kuchen
DOI:10.1016/s0022-328x(00)99276-3
日期:1983.12
Complexes (CO)5MR(X)PP(X)RM(CO)5 (R aryl; X Br, I; M Cr, W) (II) have been prepared by reaction of (CO)5M·THF with the corresponding diphosphanes RXPPXR. The disproportionation, R(X)PP(X)R [rlhar2]; (RP)n + RPX2, which is observed in solutions of the free diphosphanes, does not take place with the coordinated ligands. This is also the case for the diphosphane in (CO)5CRC6H5(H)PP(H)C6H5Cr(CO)5
配合物(CO)5 MR(X)PP(X)RM(CO)5(R芳基; XBr,I; M Cr,W)(II)已通过(CO)5 M· THF与相应的二膦烷RXPPXR。R(X)PP(X)R [rlhar2];(RP)n + RPX 2,在游离二膦的溶液中观察到,不与配位体发生。(CO)5 CRC 6 H 5(H)PP(H)C 6 H 5 Cr(CO)5中的二膦也是如此,它是通过用LiAlH 4还原从IIa获得的。这些是通过复合物形成来稳定低聚膦的另外的实例。由IIa和BuLi合成了配合物(CO)5 CrC 6 H 5(C 4 H 9 PP(C 4 H 9)C 6 H 5 Cr(CO)5,该配合物的IR,NMR和质谱分别为讨论过。