高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (6): 1244.

• 研究论文 • 上一篇    下一篇

两种半乳糖醇氯化钆配合物的制备与表征

于雷1, 华小辉2, 翟延君1, 杨丽敏3, 赵国忠4, 孟田华4,  翁诗甫2, 徐怡庄2, 刘克新3, 吴瑾光2, 陈佳洱3   

  1. 1. 辽宁中医药大学药学院, 大连 116600; 
    2. 北京大学化学与分子工程学院, 
    3.  物理学院重离子物理研究所核物理与核技术国家重点实验室, 北京 100871;
    4.  首都师范大学物理系, 北京  100037
  • 收稿日期:2010-09-13 修回日期:2010-11-26 出版日期:2011-06-10 发布日期:2011-05-10
  • 通讯作者: 翟延君;杨丽敏 E-mail:lnzyzyj@sohu.com;yanglm@pku.edu.cn
  • 基金资助:

    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.

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.

摘要: 与羟基配位是金属离子的一种重要的存在形式. 我们得到了两种半乳糖醇氯化钆配合物, 其中一种为金属离子与配体为2:1的配合物,钆离子与半乳糖醇的三个羟基及六个水分子配位, 其它水分子以结晶水的形式存在, 氯离子不参加配位;另一种配合物根据红外, 元素分析, 差热热重, 远红外以及太赫兹光谱推测可能是钆离子与两个半乳糖醇分子的六个羟基以及三个水分子配位, 形成1:1配合物. 实验结果说明半乳糖醇与稀土离子之间可以形成多种配合物, 金属离子与糖的羟基存在着复杂的相互作用.

关键词: 半乳糖醇, 钆配合物, 晶体结构, 远红外光谱, 太赫兹光谱

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

中图分类号: 

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