Nucleophilic atteck of phosphines, phosphites, and t-butyl isocyanide (L) on the bis-hexafluorobut-2-yne complexes [WBr2CO(CF3CCCF3)2] and [MX(CF3CCCF3)2(η-C5H5)](M = Mo, W; X = Cl, SC6F5: M = W; X = SC6H6Me-p) occurs at an acetylenic carbon atom to give 1:1 adducts shown by X-ray deffraction studies to contain a metal-stabilised 1â3 dipolar vinyl ligand LC(CF3)·C(CF3) co-ordinated in an η2 manner to the metal centre.
磷化物、
亚磷酸酯和叔丁基异
氰化物(L)对双六
氟丁炔配合物[WBr2CO( CC )2]和[MX( CC )2(η-
C5H5)](M = Mo,W;X = Cl,SC6F5;M = W;X = SC6H6Me-p)的亲核攻击发生在
乙炔碳原子上,通过X射线衍射研究证实形成了含有一个
金属稳定的一价三价偶极
乙烯配体LC(
CF3)·C( ),该
配体以η2方式与
金属中心配位,形成1:1加合物。