高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (1): 34-40.doi: 10.7503/cjcu20140763

• 研究论文: 无机化学 • 上一篇    下一篇

二维钨-钒簇聚物[Cu(en)2]2·[VO44{Cu(en)2(H2O)}2]·3H2O的合成与表征

刘亚冰1,2(), 段为杰2, 崔小兵2, 徐吉庆2   

  1. 1. 吉林建筑大学材料科学与工程学院, 长春 130118
    2. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2014-08-20 修回日期:2014-12-23 出版日期:2015-01-10 发布日期:2014-12-23
  • 作者简介:刘亚冰, 女, 博士, 副教授, 主要从事多酸化学研究. E-mail: liuyab@163.com

Synthesis and Characterization of a 2D Tungstovanadated Derivative: [Cu(en)2]2[VO44{Cu(en)2(H2O)}2]·3H2O

LIU Yabing1,2,*(), DUAN Weijie2, CUI Xiaobing2, XU Jiqing2   

  1. 1. Department of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, China
    2. Collage of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
  • Received:2014-08-20 Revised:2014-12-23 Online:2015-01-10 Published:2014-12-23
  • Contact: LIU Yabing E-mail:liuyab@163.com

摘要:

采用水热法合成了一个钨-钒簇聚物[Cu(en)2]2[V{Cu(en)2(H2O)}2]·3H2O(1, en=乙二胺), 并通过X射线单晶衍射、 元素分析、 傅里叶变换红外光谱、 X射线粉末衍射、 热重分析、 价键计算、 X射线光电子能谱、 电子顺磁共振和磁性分析对其结构和性能进行了表征. 结果表明, 化合物1是以双支撑的四帽Keggin结构 [(VO4){Cu(en)2(H2O)}2]4- 钨-钒簇合物阴离子为基本结构单元, 与4个[Cu(en)2]2+配合物阳离子以共价键和弱键相连接形成二维层状结构, 相邻层又通过氢键连接成三维超分子网络. 研究了化合物1的磁性及光催化降解罗丹明B的活性.

关键词: 水热合成, 钨-钒簇, 磁性, 光催化活性

Abstract:

A new compound, [Cu(en)2]2[VO44{Cu(en)2(H2O)}2]·3H2O(1, en=ethy-lenediamine), was hydrothermally synthesized and characterized by elemental analysis, Fourier transform infrared spectroscopy(FTIR), X-ray photoelectron spectroscopy(XPS), electron paramagnetic resonance(ESR), X-ray diffraction analysis(XRD), thermogravimetric(TG) analysis and single-crystal X-ray diffraction analysis. Compound 1 represents a 2D layer structure constructed from tetra-capped bi-supporting Keggin tungstovanadates and transition metal complexes. Adjacent layers are further interconnected into a 3D supramolecular structure via hydrogen bonds. The magnetic susceptibility of compound 1 demonstrates the presence of ferromagnetic interactions. In addition, the photocatalytic activity of compound 1 for the phtodegradation of Rhodamine B(RhB) was also investigated.

Key words: Hydrothermal synthesis, Tungstovanadate, Magnetic property, Photocatalytic activity

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