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[Co(tren)(amino acidato-N,O)]X2·nH2O在溶液中的NMR研究

邵伟艳 钟世舟 胡小鹏 蔡继文

波谱学杂志2002,Vol.19Issue(2):149-157,9.
波谱学杂志2002,Vol.19Issue(2):149-157,9.

[Co(tren)(amino acidato-N,O)]X2·nH2O在溶液中的NMR研究

NMR STUDIES OF COMPLEXES [Co(TREN)(AMINO ACIDATO-N,O)]X2·nH2O IN SOLUTION

邵伟艳 1钟世舟 1胡小鹏 1蔡继文1

作者信息

  • 1. 中山大学测试中心,广东广州,510275
  • 折叠

摘要

Abstract

NMR experiments at various temperature or with different solvents were used to characterize the nature of hydrogen bonds and conformation of several complexes in solution, namely the trans(N,t-N) isomer of [Co(tren)(DL-phenylalaninato)](ClO-4)-2(Ⅰ), Co(tren)(L-pro-linato)]I-2H-2O(Ⅱ), [Co(tren)(L-valinato)]I-2*1/3H-2O(Ⅲ), Co(tren)(L-isoleucinato)]I-2(Ⅳ), [Co(tren)(L-leucinato)]I-2(Ⅴ). Compared with their crystal structures in which intermolecular double or single hydrogen bonds were observed. Intramolecular double or single hydrogen bonds formed by the carbonyl oxygen of the amino acidato ligand and the amino hydrogen of the tren ligand were observed in Ⅲ, Ⅳ, Ⅴ. While the situations in Ⅰ and Ⅱ need more investigations. The 1H and 13C NMR assignments were achieved by 2D NMR(COSY and HMQC ).

关键词

Co(Ⅲ)配合物/氨基酸配体/四齿配体/氢键/NMR

Key words

Co(Ⅲ) complexes/amino acid ligand/tren/hydrogen bond/NMR

分类

数理科学

引用本文复制引用

邵伟艳,钟世舟,胡小鹏,蔡继文..[Co(tren)(amino acidato-N,O)]X2·nH2O在溶液中的NMR研究[J].波谱学杂志,2002,19(2):149-157,9.

基金项目

国家自然科学基金资助项目(29801006) (29801006)

波谱学杂志

OA北大核心CSCDCSTPCD

1000-4556

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