Unexpected Photodegradation of a Phosphaketenyl-Substituted Germyliumylidene Borate Complex
作者:Yun Xiong、Shenglai Yao、Tibor Szilvási、Ernesto Ballestero-Martínez、Hansjörg Grützmacher、Matthias Driess
DOI:10.1002/anie.201701337
日期:2017.4.3
elimination of the entire PCO group, the unprecedented [L2Ge‐GeL2] complex 3 in 54 % yields bearing the Ge22+ ion with Ge in the oxidation state +1. In addition, the 1,3‐digermylium‐2,4‐diphosphacyclobutadiene [L2Ge(μ‐P)2GeL2] 4 and bis(germyliumylidenyl)‐substituted diphosphene [(L2Ge‐P=P‐GeL2)] 5 could also be obtained in moderate yields. The formation of 3–5 and their electronic structures have been
第一个两性离子硼双-(NHC)稳定的磷烯基胚芽叉亚苄基[[L 2(O = C = P)Ge:] 2(L 2 =(对甲苯基)2 B [1-(1-金刚烷基)-3- yl-2-亚烷基] 2)是通过[L 2(Cl)Ge:] 1与磷胸苷酸钠[(二恶烷)n NaOCP]的盐复分解反应合成的,出乎意料的是,经过还原消除后,其暴露于紫外线下在整个PCO组中,史无前例的[L 2 Ge‐GeL 2 ]络合物3的54%的产率为Ge 2 2+Ge处于氧化态+1的离子。此外,1,3-二硬脂酸-2-2,4-二磷环丁二烯[L 2 Ge(μ-P)2 GeL 2 ] 4和双(锗烯基)取代的二膦[(L 2 Ge-P = P-GeL 2)还可以以中等产率获得[ 5 ] 。DFT计算已阐明了3 – 5的形成及其电子结构。