高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (12): 1838.

• 论文 • 上一篇    下一篇

二茂钌共轭大环氮杂冠醚的合成及结构

尹业高1, 易长海1, 张恭启2, 黄永德2   

  1. 1. 荆州师范学院化学系, 荆州 434100;
    2. 香港大学化学系, 香港
  • 收稿日期:1998-12-04 出版日期:1999-12-24 发布日期:1999-12-24
  • 通讯作者: 尹业高,男,44岁.博士,副教授.
  • 作者简介:尹业高,男,44岁.博士,副教授.

Synthesis and Structure of Ruthenocene-conjugated Microcyclic Triaza Crown Ether

YIN Ye-Gao1, YI Chang-Hai1, CHEUNG Kung-Kai2, WONG Wing-Tak2   

  1. 1. Department of Chemistry, Jingzhou Teachers′College, Jingzhou 434100, China;
    2. Department of Chemistry, The University of Hong Kong, Hong Kong, China
  • Received:1998-12-04 Online:1999-12-24 Published:1999-12-24

PDF (PC)

被引次数

21

摘要： 合成并表征了质子化的N-(二茂钌基甲基)-1,4,7-三氮杂-9-冠-3(1)和N,N′,N″-三-(二茂钌基甲基)-1,4,7-三氮杂-9-冠-3(2).用X射线衍射法测定了化合物2的结构.化合物2的晶体属P21/a空间群.晶胞参数a=1.4285(3)nm,b=1.9888(3)nm,c=1.9133(3)nm;β=109.12(2)°;V=5.1358(1.0)nm3;Z=4.Dc=1.665g/cm3.1和2的核磁共振谱表明,化合物中取代Cp环上质子的共振吸收较二茂钌Cp环上质子的吸收向低场移动.这表明质子化的1,4,7-三氮杂-9冠-3对Cp环上质子具有去屏蔽作用.化合物2的电位扫描曲线在0.84V处出现一个氧化波.

关键词: 二茂钌, 分子内相互作用, 核磁共振

Abstract: Protonated N-(ruthenocenylmethyl)-1,4,7-triazacyclononane(1) and N, N′, N″-tris-(ruthenocenylmethyl)-1, 4, 7-triazacyclononane(2) were prepared and characterized. The structure of 2 was determined by X-ray crystallographic method. The crystal belongs to P21/a space group and cell parameters are a = 1.4285(3) nm, b = 1.9888(3) nm, c = 1.9133(3) nm; β = 109.12(2)°; V =5.1358(1.0) nm3; Z =4. Dc=1.665 g/cm3. 1HNMR spectra of 1 and 2 revealed that the absorptions of the protons on substituted Cp rings in these compounds had a down-field shift from those of the protons on the Cp rings of ruthenocene. The observation suggests that the protonated 1,4,7-triazacyclononane has a deshielding effect on the protons of the ruthenocene units. The CV curve of 2 gave an oxidation wave at 0.84 V.

Key words: Ruthenocene, Intramolecular interaction, NMR

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