| 一种双钒帽多金属氧酸盐的水热合成及其晶体结构和热稳定性 |
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| 引用本文： | 吕秀清,刘毓芳,何婧.一种双钒帽多金属氧酸盐的水热合成及其晶体结构和热稳定性[J].化学研究,2014(1):24-28. |
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| 作者姓名： | 吕秀清 刘毓芳 何婧 |
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| 作者单位： | 晋中学院化学化工学院,山西晋中030600 |
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| 基金项目： | 山西省教育厅高校科技研究开发项目（20121026）. |
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| 摘 要： | 采用水热法合成了一种双钒帽多金属氧酸盐CrⅢ(1,10-phen)2(H2O)]2PMoⅤ6MoⅥ6O40(VⅣO)2(OH)];利用元素分析、红外光谱、单晶X射线衍射表征了其组成和分子结构,利用热重分析测定了其热稳定性.结果表明,合成的化合物由无序的双帽假Keggin型PMoⅤ6MoⅥ6O40(VⅣO)2(OH)]6-杂多阴离子和两个CrⅢ(1,10-phen)2(H2O)]3+配位阳离子单元组成,其热失重分两步进行,热稳定性良好.
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| 关 键 词： | 双钒帽多阴离子 多金属氧酸盐 水热合成 晶体结构 热稳定性 |
Hydrothermal synthesis of a bivanadyl capped polyoxometalate and its crystal structure and thermal stability |
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| LU Xiuqing,LIU Yufang,HE Jing.Hydrothermal synthesis of a bivanadyl capped polyoxometalate and its crystal structure and thermal stability[J].Chemical Research,2014(1):24-28. |
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| Authors: | LU Xiuqing LIU Yufang HE Jing |
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| Institution: | (College of Chemistry and Chemical Engineering, J inzhong University, J inzhong 030600, Shanzi, China) |
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| Abstract: | A bivanadyl-capped polyoxometalate, CrIII（1,10-phen）2（H2O）]2PMo6VMo6VIO40（VIVO）2（OH）], was synthesized by hydrothermal method. The composition and molecular structure of as-synthesized compound were characterized by element analysis, infrared spectrometry, and single-crystal X-ray diffraction; and its thermal stability was evaluated based on thermogravimetric analysis. Results reveal that as-synthesized compound is built by a mixedmetal bicapped PMo6VMo6VIO40（VIVO）2（OH）]6- subunit and two CrIII（1,10-phen）2（H2O）]3＋ cations. Besides, as-synthesized product has good thermal stability and experiences two-step thermal decomposition process. |
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| Keywords: | bivanadyl-capped polyoxoanion polyoxometalate hydrothermal synthesis crystal structure thermal stability |
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