Photochemical Synthesis and Reactivity of New Chloro-Bridged Complexes with Tungstenocene (η5-C5H5)(η5-C5H4PPh2)WClX (X = H, Cl) and Tetracarbonylmetal (Cr, W) Units
Chloro-bridged bimetallic complexes (η5-C5H5)[η5-C5H4PPh2M′(CO)4]W(μ-Cl)X [X = Cl (3), × = H (4); M′ = Cr, W] were prepared by photochemical irradiation of (η5-C5H5)[η5-C5H4PPh2M′(CO)5]WClX [X = Cl (1), × = H (2); M′ = Cr, W]. The reactivity of the chloro-bridged complexes towards Lewisbases was studied; by exposure to CO or phosphanes, a facile cleavage of the chloro bridge accompanied by regio-
氯桥双金属配合物 (η5-C5H5)[η5-C5H4PPh2M'(CO)4]W(μ-Cl)X [X = Cl (3), × = H (4); M' = Cr, W] 由 (η5- )[η5-C5H4PPh2M'(CO)5]WClX [X = Cl (1), × = H (2); M' = Cr,W]。研究了氯桥络合物对路易斯碱的反应性;通过暴露于 CO 或磷烷,氯桥容易裂解,并伴随 M' 处的区域和立体特异性配位发生。报道了配合物 3 (M' = W) 的 X 射线结构。
Rigny, Sandrine; Leblanc, Jean-Claude; Moise, Claude, New Journal of Chemistry, 1997, vol. 21, # 4, p. 469 - 476