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有机化学
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有机化学 ›› 2004, Vol. 24 ›› Issue (7): 770-774. 上一篇    下一篇

研究论文

有机锡化合物二｛氧合-二[杂环羧酸二丁基锡(IV)]｝的合成、表征和二｛氧合-二[2-噻吩甲酸二丁基锡(IV)]｝的晶体结构

尹汉东*, 王传华, 邢秋菊   

  1. 聊城大学化学系 聊城 252059
  • 收稿日期:2003-10-21 修回日期:2003-12-18 接受日期:2004-01-19 发布日期:2022-09-20
  • 通讯作者: *E-mail: handongyin@lctu.edu.cn
  • 基金资助:
    国家自然科学基金(No. 20271025)和山东省自然科学基金(No. L2003B01)资助项目

Synthesis and Characterization of Organotin Compound Bis｛oxo-bis[(heteroaro- matic carboxylato)di-n-butyltin(IV)]｝and Crystal Structure of Bis｛oxo-bis[(2-thiophenylcarboxylato)di-n-butyltin(IV)]｝

YIN, Han-Dong*, WANG, Chuan-Hua, XING, Qiu-Ju   

  1. Department of Chemistry, Liaocheng University, Liaocheng 252059
  • Received:2003-10-21 Revised:2003-12-18 Accepted:2004-01-19 Published:2022-09-20

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利用二丁基氧化锡与杂环羧酸反应,合成8个有机锡化合物二｛氧合-二[杂环羧酸二丁基锡(IV)]｝.通过元素分析、红外光谱、核磁共振氢谱和锡谱对其结构进行了表征.用X射线单晶衍射测定了二｛氧合-二[2-噻吩甲酸二丁基锡(IV)]｝的晶体结构,结果表明,该化合物是以Sn2O2四面体为中心的,中心对称的二聚体结构,内、外环锡原子均为六配位的畸变八面体构型.该化合物晶体属单斜晶系,空间群P2(1)/n, a=1.3721(10) nm, b=1.7297(13) nm, c=1.3721(10) nm, β=93.709(8)°, Z=2, V=3.249(4) nm3, Dc=1.505 g/cm3, μ=1.695 mm－1, F(000)=1480, R=0.0480, wR=0.0978.

关键词: 有机锡, 杂环羧酸, 合成, 晶体结构

The eight organotin compounds bis｛oxo-bis[(heteroaromatic carboxylato)di-n-butyltin(IV)]｝ were synthesized by the reaction of (n-Bu)2SnO with heteroaromatic carboxylic acidin 1∶1 molar ratio. The crystal structure of bis｛oxo-bis[(2-thiophenylcarboxylato)di-n-butyltin(IV]｝ was determined by single-crystal X-raydiffraction. This compound belongs to centrosymmetric dimer structure mode witha four-membered central endo-cyclic Sn2O2 unit in which the bridging oxygen atoms are tri-coordinated. Each bridging oxygen atom also connects with an exo-cyclic tin atom. The endo-cyclic and exo-cyclic tin atoms all are six-coordinated and have coordination geometry of distorted octahedron. The crystal belongs to monoclinic system with space group P2(1)/n, a=1.3721(10) nm,b=1.7297(13) nm, c=1.3721(10) nm, β=93.709(8)°, Z=2, V=3.249(4) nm3, Dc=1.505 g/cm3, μ=1.695 mm－1, F(000)=1480, R=0.0480, wR=0.0978.

Key words: organotin, heteroaromatic carboxylic acid, synthesis, crystal structure