高等学校化学学报 ›› 2022, Vol. 43 ›› Issue (1): 20210600.doi: 10.7503/cjcu20210600

• 研究论文 • 上一篇    下一篇

两种砷钼杂化多酸盐的合成、 结构及变色性质

王进, 石文杰, 金邻豫, 马鹏涛, 王敬平, 牛景杨()   

  1. 河南大学化学化工学院, 开封 475000
  • 收稿日期:2021-08-18 出版日期:2022-01-10 发布日期:2021-10-26
  • 通讯作者: 牛景杨 E-mail:jyniu@henu.edu.cn
  • 基金资助:
    国家自然科学基金(21771053)

Synthesis, Structure, and Allochroic Property of Two Hetro-arsenomolybdates Hybrid Polyoxometalates

WANG Jin, SHI Wenjie, JIN Linyu, MA Pengtao, WANG Jingping, NIU Jingyang()   

  1. College of Chemistry and Chemical Engineering,Henan University,Kaifeng 475000,China
  • Received:2021-08-18 Online:2022-01-10 Published:2021-10-26
  • Contact: NIU Jingyang E-mail:jyniu@henu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21771053)

摘要:

分别以2种V形羧酸[1,3-苯二甲酸(H2BDC)和5-羟基-1,3-苯二甲酸(H2OIP)]与钼酸铵进行反应, 得到了 2种有机酸根与无机酸根缩合构成的杂化砷钼酸盐: (NH4)17H4[(AsMo6O21)2(AsMo6O23)(BDC)4]·28H2O(1)和 (NH4)5Cs8H6[(AsMo6O21)3(OIP)5]·40H2O(2). 利用单晶X射线衍射对2种化合物进行了结构分析, 发现二者均为三聚结构. 对2种化合物的光致变色及热致变色性质进行了研究, 发现在氙灯照射下2种化合物均可在5 min内变色. 当将2种化合物的样品加热到373 K时, 均出现颜色变化, 并随着温度升高颜色逐渐加深. 光致变色与热致变色过程前后的EPR检测结果均提示化合物的颜色变化与MoVI转化为MoV有关.

关键词: 杂化多酸, 砷钼酸盐, 芳香族二元羧酸, 光致变色

Abstract:

Benzene-1,3-dicarboxylic acid(H2BDC) and 5-hydroxy-1,3-benzene dicarboxylic acid(H2OIP) have been employed to synthesis two organic-inorganic hybrid arsenomolybdates, (NH417H4[(AsMo6O212(AsMo6O23)(BDC)4]·28H2O(1) and (NH45Cs8H6[(AsMo6O213(OIP)5]·40H2O(2). X-Ray crystallographic study indicated that both of the two compounds are trimers. The photochromic properties have been studied. Under the irradiation of a Xe-lamp, the two compounds changed their colors within 5 min. The thermochromic study of the two compounds indicated that they changed color at 373 K, and their color deepened on the increase of temperature.

Key words: Hybrid polyoxometalate, Hetero-arsenomolybdates, Aromatic dicarboxylic acid, Photochromic property

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