Acta Phys. -Chim. Sin. ›› 2003, Vol. 19 ›› Issue (07): 610-615.doi: 10.3866/PKU.WHXB20030709

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Synthesis, Thermostability and Bioactivity of Mixed Ligand Complexes of Lanthanum with Alanine and Imidazoles

Yang Rui;He Shui-Yang;Gu Ai-Ping;Wen Zhen-Yi;Lin Xiang; Wen Hui-Zhong   

  1. Department of Chemistry, Northwest University and Shaanxi Key laboratory of PhysicoInorganic Chemistry, Xi’an　710069; 1Guangxi Agriculture University, Nanning　530005
  • Received:2002-11-19 Revised:2003-01-27 Published:2003-07-15
  • Contact: He Shui-Yang E-mail:xdhsy@263.net

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Abstract: Two new ternary complexes La(Ala)3Im(ClO4)3•3H2O (La1) and La(Ala)3BenIm(ClO4)3•H2O (La2) of lanthanum perchlorate and DL-α-alanine (Ala),imidazole (Im) or benzimidazole (BenIm) have been synthesized.In methanol, the composition of the complexes is determined by EDTA capacity analysis and elemental analysis. The characters and thermostability have been studied by IR, UV, X-ray, and TG-DTG, DSC analysis. Bioactivity experiments show that the complexes have bacteriostasis effect for five variety of microbe.

Key words: Lanthanum ternary complex, Alanine, Imidazole, Benzimidazole, 　Thermostability, Bioactivity