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Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (9): 917-922. Previous Articles     Next Articles

Original Articles

[Cr(III)(SSA)(en)2]•2H2O配合物的合成、表征及性质研究

刘斌，李英奇，杨斌盛*   

  1. (山西大学分子科学研究所 化学生物学与分子工程教育部重点实验室 太原 030006)
  • 投稿日期:2005-08-05 修回日期:2006-01-12 发布日期:2006-05-15
  • 通讯作者: 杨斌盛

Synthesis, Characterization and Properties of Chromium(III) Complex [Cr(III)(SSA)(en)2]•2H2O

LIU Bin, LI Ying-Qi, YANG Bin-Sheng*   

  1. (Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, Institute of Molecular Science, Shanxi University, Taiyuan 030006)
  • Received:2005-08-05 Revised:2006-01-12 Published:2006-05-15
  • Contact: YANG Bin-Sheng

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In this paper new chromium(III) complex [Cr(SSA)(en)2]•2H2O (en＝ethylenediamine, SSA＝5-sulfosalicylic acid) was synthesized and characterized by elemental analysis, IR, UV-Vis and X-ray crystallography. The interaction of human serum albumin with the complex was investigated by fluorescence spectra, the conditional binding constant K (2.7±0.1)×104 and the number of binding sites n (3.87) were obtained. The kinetics of release of Cr3＋from [Cr(SSA)(en) 2]•2H2O to EDTA and apoovotransferrin was investigated at different temperatures in 0.05 mol•L－1 Tris-HCl buffer at pH 7.4 by fluorescence spectrophotometer, and the respective rate constants at 37 ℃ were 0.0142 and 0.0225 h－1.

Key words: chromium(III) complex, 5-sulfosalicylic acid, human serum albumin, apoovotransferrin, fluorescence spectroscopy