物理化学学报 >> 2012, Vol. 28 >> Issue (02): 290-296.doi: 10.3866/PKU.WHXB201112121

热力学,动力学和结构化学 上一篇    下一篇

5-氯-2-甲氧基苯甲酸与1,10-邻菲啰啉稀土配合物的合成、表征及热分解机理

张洁1,2, 王娟芬2, 张建军2   

  1. 1. 石药集团河北中润制药有限公司, 石家庄 050041;
    2. 河北师范大学实验中心, 石家庄 050016
  • 收稿日期:2011-09-02 修回日期:2011-11-28 发布日期:2012-01-11
  • 通讯作者: 张建军 E-mail:jjzhang6@126.com
  • 基金资助:

    国家自然科学基金(20773034, 21073053)资助项目

Synthesis, Characterization and Thermal Decomposition Mechanism of Rare Earth Complexes with 5-Chloro-2-methoxybenzoic Acid and 1,10-Phenanthroline

ZHANG Jie1,2, WANG Juan-Fen2, ZHANG Jian-Jun2   

  1. 1. Shijiazhuang Pharmaceutical Group, Hebei Zhongrun Pharmaceutical Co., Ltd., Shijiazhuang 050041, P. R. China;
    2. Experimental Center, Hebei Normal University, Shijiazhuang 050016, P. R. China
  • Received:2011-09-02 Revised:2011-11-28 Published:2012-01-11
  • Contact: ZHANG Jian-Jun E-mail:jjzhang6@126.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20773034, 21073053).

摘要: 合成了三种稀土配合物[Ln(5-Cl-2-MOBA)3phen]2 (Ln=Nd (1), Eu (2), Ho (3); 5-Cl-2-MOBA: 5-氯-2-甲氧基苯甲酸根; phen: 1,10-邻菲啰啉), 通过元素分析、热重-微分热重-差示扫描量热(TG-DTG-DSC)、红外光谱(IR)、紫外光谱(UV)及摩尔电导等技术对标题配合物进行了表征. 荧光光谱表明配合物(2)发出铕离子的特征荧光. 用热分析/傅里叶变换红外(TG-DSC/FTIR)联用技术, 阐明标题配合物的热分解反应机理, 并分析了逸出气体的三维(3D)红外光谱.

关键词: 稀土配合物, 热分解机理, 三维红外光谱, 逸出气体, 热重-差示扫描量热

Abstract: Three rare earth complexes of [Ln(5-Cl-2MOBA)3phen]2 (Ln=Nd(1), Eu(2), Ho(3); 5-Cl- 2MOBA: 5-chloro-2-methoxybenzoate; phen: 1,10-phenanthroline) were synthesized and characterized by elemental analysis, thermogravimetry-differential thermogravimetry-differential scanning calorimetry (TG-DTG-DSC), infrared (IR) spectra, ultraviolet (UV) spectra, and molar conductance techniques. The fluorescence spectra showed that complex (2) emitted a characteristic fluorescence of the Eu3+ ions. The thermal properties are discussed by thermogravimetry - differential scanning calorimetry / Fourier transform infrared (TG-DSC/FTIR) techniques. And the three-dimensional IR accumulation spectra for the three complexes were also analyzed.

Key words: Rare earth complex, Thermal decomposition mechanism, Three-dimensional infrared accumulation spectrum, Evolved gas, Thermogravimetry-differential scanning calorimetry

MSC2000: 

  • O642