Synthesis, Structures and Thermal Decomposition of Monomeric Aluminium, Gallium and Indium Silylphosphanides
作者:Manuel Kapitein、Carsten von Hänisch
DOI:10.1002/ejic.201402996
日期:2015.2
Monomeric N-heterocyclic carbene (NHC)-stabilized compounds (IMes)R2MP(H)SitBuPh2 (2: M = Al, R = Et; 3: M = Ga, R = Et; 4: M = Ga, R = iPr; 5: M = In, R = Et) have been prepared in moderate yields through the cleavage of four-membered metal phosphine rings like [iPr2GaP(H)SitBuPh2]2 (1) described herein. These compounds were isolated and characterized by means of X-ray crystallographic analysis as
单体 N-杂环卡宾 (NHC)-稳定化合物 (IMes)R2MP(H)SitBuPh2 (2: M = Al, R = Et; 3: M = Ga, R = Et; 4: M = Ga, R = iPr; 5:M = In,R = Et) 通过四元金属膦环的裂解,如本文所述的 [iPr2GaP(H)SitBuPh2]2 (1) 以中等产率制备。这些化合物通过 X 射线晶体学分析和 NMR 光谱进行分离和表征。在此基础上,讨论了结构特性,特别是 M-P 键长和 CNHC-M-P 角,并尽可能与文献已知的化合物进行比较。从磷结合的氢和金属结合的有机取代基之间的顺式设置开始,具有非常低的扭转角,导致几乎共面的排列,描述了热诱导消除反应的结果。