Synthesis and catalytic activity of monobridged bis(cyclopentadienyl)rhenium carbonyl complexes
作者:Zhen Li、Zhi-Hong Ma、Hong Wang、Zhan-Gang Han、Xue-Zhong Zheng、Jin Lin
DOI:10.1007/s11243-016-0064-1
日期:2016.9
biscyclopentadienes (C5H5)R(C5H5) [R = C(CH3)2 (1), C(CH2)5 (2), Si(CH3)2 (3)] with Re2(CO)10 in refluxing mesitylene gave the corresponding complexes [(η5-C5H4)2R][Re(CO)3]2 [R = C(CH3)2 (4), C(C5H10) (5), Si(CH3)2 (6)], which were separated by chromatography, and characterized by elemental analysis, IR, and 1H NMR spectroscopy. The molecular structures of complexes 5 and 6 were characterized by X-ray crystal
三种单桥双环戊二烯 (C5H5)R(C5H5) [R = C(CH3)2 (1), C(CH2)5 (2), Si(CH3)2 (3)] 与 Re2(CO)10 的热处理回流均三甲苯得到相应的配合物 [(η5-C5H4)2R][Re(CO)3]2 [R = C(CH3)2 (4), C(C5H10) (5), Si(CH3)2 (6) ],通过色谱分离,并通过元素分析、IR 和 1H NMR 光谱表征。配合物 5 和 6 的分子结构通过 X 射线晶体衍射分析表征,表明两者都是单桥连的双(环戊二烯基)铼羰基配合物,其中分子由两个 [(η5-C5H4)Re(CO)3] 部分组成通过单桥连接,其中两个 Re(CO)3 单元中的每一个都以 η5 模式与环戊二烯基环配位。