| 内消旋和外消旋-2,3-二异丁酰氧-2,3-二苯基丁二腈的晶体结构和分子结构: 受-授取代基效应对分子构象的影响 |
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| 引用本文： | 刘中立,王潘奋,吴隆民,刘有成,孟益民,王奇光,王欣,祝英.内消旋和外消旋-2,3-二异丁酰氧-2,3-二苯基丁二腈的晶体结构和分子结构: 受-授取代基效应对分子构象的影响[J].化学学报,1987,45(6):569-574. |
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| 作者姓名： | 刘中立 王潘奋 吴隆民 刘有成 孟益民 王奇光 王欣 祝英 |
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| 作者单位： | 兰州大学化学系;兰州大学分析测试中心 |
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| 基金项目： | 国家教育委员会科学基金资助课题 |
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| 摘 要： | 1979年Viehe等人提出了受-授取代基效应(capto-dative substituent effect)的概念,认为在六取代乙烷(1)中,除吸电子取代基CN外,有给电子取代基R,则1比较容易均裂成取代甲基自由基2。近年来,受-授取代基效应引起了许多研究者的兴趣,但对具有受-授取代基的多取代乙烷的分子结构和晶体结构,尚鲜见报道。
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| 关 键 词： | 晶体结构测定 分子结构 Ｘ射线衍射分析 计算机应用 苯P 结构与性能关系 取代基效应 电子接受体 乙烷P 酰氧基 |
Crystal and molecular structure of meso- and dl-2,3-diisobutyryloxy-2,3-diphenylsuccinonitriles: The influence of capto-dative effect upon the conformation of the molecules |
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| LIU ZHONGLI,WANG PANFEN,WU LONGMIN,LIU YOUCHENG,MENG YIMIN,WANG QIGUANG,WANG XIN,ZHU YING.Crystal and molecular structure of meso- and dl-2,3-diisobutyryloxy-2,3-diphenylsuccinonitriles: The influence of capto-dative effect upon the conformation of the molecules[J].Acta Chimica Sinica,1987,45(6):569-574. |
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| Authors: | LIU ZHONGLI WANG PANFEN WU LONGMIN LIU YOUCHENG MENG YIMIN WANG QIGUANG WANG XIN ZHU YING |
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| Abstract: | meso- And dl-2, 3-Diisobutyryloxy-2, 3-diphenylsuccinonitriles (dl-I), which are ethane derivatives with capto-dative substituents, have been prepared and their crystal and mol. structures determine by X-ray crystallog. The chem. bonds attached to the central carbon atoms are all obviously stretched, especially that of the Ca-Ob bond in dl-I. The deformation of the mols. is explained by steric, electronic and capto-dative substituent effects through conformational anal. |
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| Keywords: | CRYSTAL STRUCTURE DETERMINATION MOLECULAR STRUCTURE X-RAY DIFFRACTION ANALYSIS COMPUTER APPLICATIONS BENZENE P STRUCTURE AND PROPERTY CORRELATION SUBSTITUENT EFFECT ELECTRON ACCEPTOR ETHANE P ACYLOXY |
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