An Air‐Stable Heterobimetallic Si2M2 Tetrahedral Cluster

摘要

Abstract > Air‐ and moisture‐stable heterobimetallic tetrahedral clusters [Cp(CO) <sub>2</sub> MSiR] <sub>2</sub> (M=Mo or W; R=Si t Bu <sub>3</sub> ) were isolated from the reaction of N‐heterocyclic carbene (NHC) stabilized silyl(silylidene) metal complexes Cp(CO) <sub>2</sub> M=Si(Si t Bu <sub>3</sub> )NHC with a mild Lewis acid (BPh <sub>3</sub> ). Alternatively, treatment of the NHC‐stabilized silylidene complex Cp(CO) <sub>2</sub> W=Si(Si t Bu <sub>3</sub> )NHC with stronger Lewis acids such as AlCl <sub>3</sub> or B(C <sub>6</sub> F <sub>5</sub> ) <sub>3</sub> resulted in the reversible coordination of the Lewis acid to one of the carbonyl ligands. Computational investigations revealed that the dimerization of the intermediate metal silylidyne (M≡Si) complex to a tetrahedral cluster instead of a planar four‐membered ring is due to steric bulk. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 空气和水分稳定的异质型四面体簇[CP（CO） <sub> 2 </ sub> MSIR] <sub> 2 </ sub> （m = mo或w; r = si t </ i> BU. <sub> 3 </ sub> 从N-杂环基石（NHC）稳定的甲硅烷基（Silylidene）金属配合物CP（CO）的反应中分离出来 <sub> 2 </ sub> m = si（si t </ i> BU. <sub> 3 </ sub> ）NHC用轻度路易斯酸（BPH <sub> 3 </ sub> ）。或者，治疗NHC稳定的甲硅烷基甲苯络合物CP（CO） <sub> 2 </ sub> w = si（si t </ i> BU. <sub> 3 </ sub> ）NHC具有较强的路易斯酸，如ALCL <sub> 3 </ sub> 或b（c <sub> 6 </ sub> F <sub> 5 </ sub> 的） <sub> 3 </ sub> 导致路易斯酸的可逆配位与其中一个羰基配体。计算研究表明，中间金属甲硅烷氧化钇（M≡Si）复合物与四面体簇代替平面的四元环的二聚化是由于空块。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-19011/'>《Angewandte Chemie》</a> <b style="margin: 0 2px;">|</b><span>2020年第14期</span><b style="margin: 0 2px;">|</b><span>共7页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1188.html" title="应用化学">应用化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=cluster compounds&option=203" rel="nofollow">cluster compounds;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=silicon&option=203" rel="nofollow">silicon;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=silylidenes&option=203" rel="nofollow">silylidenes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=silylidynes&option=203" rel="nofollow">silylidynes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=tetrahedranes&option=203" rel="nofollow">tetrahedranes;</a> </p> <div class="translation"> 机译：簇化合物;硅;甲硅烷丽根;甲硅烷丽莎;四丁烷; 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