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
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/NMRKey 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)