Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (6): 1244.

• Articles • Previous Articles     Next Articles

Preparation and Characterization of Two GdCl3-galactitol Complexes

YU Lei1, HUA Xiao-Hui2, ZHAI Yan-Jun1*, YANG Li-Min3*, ZHAO Guo-Zhong4, MENG Tian-Hua4, WENG Shi-Fu2, XU Yi-Zhuang2, LIU Ke-Xin3, WU Jin-Guang2, CHEN Jia-Er3   

  1. 1. College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China;
    2. College of Chemistry and Molecular Engineering,
    3. State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics,  School of Physics, Peking University, Beijing 100871, China;
    4. Department of Physics, Capital Normal University, Beijing 100037, China
  • Received:2010-09-13 Revised:2010-11-26 Online:2011-06-10 Published:2011-05-10
  • Contact: ZHAI Yan-Jun;YANG Li-Min E-mail:lnzyzyj@sohu.com;yanglm@pku.edu.cn
  • Supported by:

    国家“九七三”计划项目(批准号:  2002CB713600)和国家自然科学基金(批准号: 21001009, 50973003)资助.

Abstract: Coordination of hydroxyl groups to metal ions is common in biosystems. Here two GdCl3-galactitol complexes have been prepared, one is 2GdCl3?C6H14O6?14H2O, in which Gd3+ is coordinated to three hydroxyl groups of galactitol and six water molecules, other water molecules are hydrogen-bonded and chloride ions do not coordinate to metal ions. It is possible that Gd3+ is 9-coordinated to six hydroxyl groups from two galactitol molecules and three water molecules, the ratio of metal to galactitol is 1:1 and maybe several water molecules are hydrogen-bonded in the second GdCl3-galactitol complex according to IR, elemental analysis, FIR, THz and TGA results. The experimental results indicate that two lanthanide-galactitol complexes can be obtained, which demonstrate the complexity of the interactions between metal ions and hydroxyl groups.

Key words: galactitol, GdCl3-complex, crystal structure, far-IR spectrum, THz spectrum

CLC Number: 

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