首页> 外文期刊>International Journal of Quantum Chemistry >Odd aromatic Si ₄4 ring stabilized by V?V bond passing through it: May π‐bonding form without σ‐bonding as precondition?

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Odd aromatic Si ₄4 ring stabilized by V?V bond passing through it: May π‐bonding form without σ‐bonding as precondition?

机译：奇芳族SI _{4 4环通过vΔv稳定通过它：可以π-键合形式没有σ键合作为前提？}

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Abstract > This work theoretically presents a type of inverse sandwiches [VCl] <sub>2</sub> [Si <sub>4</sub> R <sub>4</sub> ] (R?H, CH <sub>3</sub> , SiH <sub>3</sub> ), of which V?V, V?Si, and Si?Si bonding modes are very odd. [VCl] <sub>2</sub> [Si <sub>4</sub> R <sub>4</sub> ] has the tetragonal dipyramid structure of two V atoms bridged by Si <sub>4</sub> ring. The eight V?Si edges mainly consist of four 3c‐2e V?Si?V and two 4c‐2e V?Si?V?Si bridge bonds. A V?V bond passes through the square aromatic Si <sub>4</sub> ring. The oddest phenomenon is that no apparent Si?Si σ‐bonding is found in the 4c‐6e aromatic Si <sub>4</sub> ring, indicating that π‐bonding may form without σ‐bonding as precondition. The orbital and bond order analyses prove the phenomenon. The odd aromatic π system may be stabilized by bridge bonds and the unique V?V bond passing through the center ligand, because such phenomena are not available for [TiCl] <sub>2</sub> [Si <sub>4</sub> R <sub>4</sub> ]. Since π‐bondings are not so stronger than σ‐bondings, it is easy to perform interconversion between the aromatic/non‐cyclic 4c‐6e π systems of [VCl] <sub>2</sub> [Si <sub>4</sub> R <sub>4</sub> ]. </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> >本工作理论上呈现了一种逆三明治[VCL] <sub> 2 </ sub > [Si <sub> 4 </ sub> R <sub> 4 </ sub>]（r？h，ch <sub> 3 </ sub>，sih <sub> 3 </ sub>），其中V ？v，v？si和si？si键合模式非常奇数。 [VCL] <sub> 2 </ sub> [Si <sub> 4 </ sub> R <sub> 4 </ sub>]具有由Si <sub> 4 </ sub桥接的两种V原子的四边形二霉菌结构>环。八个v？si边缘主要由四个3c-2e v？si？v和两个4c-2e v？si？v？si桥接键组成。 V + V键通过方形芳族Si <sub> 4 </ sub>环。最奇怪的现象是在4c-6e芳族Si <sub> 4中没有明显的siΔsiσ键合，表明π键合可以形成没有σ键合作为前提条件。轨道和债券命令分析证明了这一现象。奇数芳族π系统可以通过桥接键稳定，并且通过中心配体的独特vΔV键，因为这种现象不适用于[TiC1] <sub> 2 </ sub> [Si <sub> 4 </ sub> R <sub> 4 </ sub>]。由于π-键合不得比σ粘合更强，因此易于在[VCL] <sub> 2 </ sub> [Si <sub> 4 <]的芳族/非循环4c-6eπ系统之间进行互连。 / sub> R <sub> 4 </ sub>]。 </ p> </ abstract> </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-21753/'>《International Journal of Quantum Chemistry》</a> <b style="margin: 0 2px;">|</b><span>2018年第24期</span><b style="margin: 0 2px;">|</b><span>共5页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Nannan&option=202" target="_blank" rel="nofollow">Liu Nannan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Jian&option=202" target="_blank" rel="nofollow">Wang Jian;</a> </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"> <p>Chemistry Center College of Food EngineeringHarbin University of CommerceHarbin China;</p> <p>Institute of Theoretical Chemistry Jilin UniversityChangchun China;</p> </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/1186.html" title="物理化学（理论化学）、化学物理学">物理化学（理论化学）、化学物理学;</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=aromaticity&option=203" rel="nofollow">aromaticity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=inverse sandwich&option=203" rel="nofollow">inverse sandwich;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=low valent&option=203" rel="nofollow">low valent;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=tetrasilacyclobutadiene&option=203" rel="nofollow">tetrasilacyclobutadiene;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=vanadium&option=203" rel="nofollow">vanadium;</a> </p> <div class="translation"> 机译：芳香性;逆三明治;低价;四硅酸盐丁二烯;钒; 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张会珍&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,张会珍</a> <span> <a href="/journal-cn-50336/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 半导体学报：英文版 </a> </span> <span> . 1994</span><span>,第5期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-17039_thesis/020221757617.html">键合-自组装法制备碳纳米管固相微萃取纤维及其稳定性与萃取性能的研究</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘红妹&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 刘红妹</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李菊白&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李菊白</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘霞&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,刘霞</a> <span> <a href="/conference-cn-17039/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第十七届全国色谱学术报告会 </a> <span> <span> . 2009</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/02031910491.html">Ⅲ-Ⅴ族材料外延生长的动力学模拟仿真及半导体晶片键合的实验</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=韩威&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 韩威</a> <span> . 2006</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120104718324.html">包括功能性芳族衍生物化妆品键合剂的局部组合物</a> <b>[P]</b> . <span> 中国专利： CN1527694A </span> <span> . 2004-09-08</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120111160963.html">硅与III-V族化合物硅键合材料及其键合方法</a> <b>[P]</b> . <span> 中国专利： CN108695143A </span> <span> . 2018-10-23</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130457618337.html">Bonding glass ring for forming sodium-sulfur battery and bonding method using the bonding glass ring</a> <b>[P]</b> . <span> 外国专利：  JP2504840B2 </span> <span> . 1996-06-05</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于形成钠硫电池的粘合玻璃环和使用该粘合玻璃环的粘合方法 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130456194036.html">Bonding glass for forming sodium-sulfur battery and method for bonding bottomed cylindrical solid electrolyte and insulator ring using the bonding glass</a> <b>[P]</b> . <span> 外国专利：  JP2619061B2 </span> <span> . 1997-06-11</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于形成钠硫电池的粘合玻璃以及使用该粘合玻璃粘合有底圆柱形固体电解质和绝缘体环的方法 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130406657572.html">Disclosed herein are fumagillol compounds of Formula (I) or Formula (Ia): wherein: Y is a bond or NR8; X is N or CRN; wherein X is N when Y is a bond and X is CRN when Y is NR8; n is 0 or 1; m is 1 or 2; Ring A may be optionally substituted by one or two substituents as defined; and R1 and R2, together with the carbon or carbons to which they are attached, form a 4-6 membered saturated heterocyclic ring B having one or two heteroatoms selected from the group consisting of O, S(O)w (wherein w is</a> <b>[P]</b> . <span> 外国专利：  IN201817005439A </span> <span> . 2018-06-01</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：本文公开了式（I）或式（Ia）的烟曲霉酚化合物：其中：Y是键或NR 8; X为N或CRN;其中当Y为键时X为N，当Y为NR8时X为CRN; n为0或1; m为1或2;环A可以任选地被一个或两个所定义的取代基取代; R1和R2与它们所连接的一个或多个碳原子一起形成具有一个或两个选自O，S（O）w（其中w为1的杂原子）的4-6元饱和杂环B。 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704019755826','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div class="journal-sub"> <h2>期刊订阅</h2> <img src="https://cdn.zhangqiaokeyan.com/img/loginclose.png" alt="" onclick="$('.journalsub-pop-up').hide()"> <p class="pardon">抱歉，该期刊暂不可订阅，敬请期待！</p> <p class="current">目前支持订阅全部北京大学中文核心（2020）期刊目录。</p> <div style="display: flex;margin-top: 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Odd aromatic Si 44 ring stabilized by V?V bond passing through it: May π‐bonding form without σ‐bonding as precondition?

摘要

Odd aromatic Si ₄4 ring stabilized by V?V bond passing through it: May π‐bonding form without σ‐bonding as precondition?