Journal of Petrochemical Universities

Journal of Petrochemical Universities ›› 2023, Vol. 36 ›› Issue (3): 60-65.DOI: 10.12422/j.issn.1006-396X.2023.03.009

• Alternative Fuels and New Materials • Previous Articles     Next Articles

Hydrothermal Synthesis, Crystal Structure and Fluorescence Property of a Tb Coordination Complex

Lei Guan(), Xian Chen, Bowen Fan, Yaxu Chen, Pengpeng Yin, Ying Wang   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2022-08-24 Revised:2022-09-26 Published:2023-06-25 Online:2023-06-25

Tb配合物的水热合成、晶体结构及荧光性质

关磊(), 陈贤, 范博文, 陈雅旭, 尹鹏鹏, 王莹   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 作者简介:关磊(1981⁃),男,博士,副教授,从事功能配合物方面的研究;E⁃mail:gl_coord@163.com
  • 基金资助:
    辽宁省教育厅科学研究经费项目(L2019010)

Abstract:

The Tb coordination complex [Tb(H2O)8]?(L)?2(4,4'?bipy)?3H2O(complex 1) was synthesized by hydrothermal reaction of sodium 1,3,6?naphthalene trisulfonate (Na3L) and 4,4'?bipy (4,4'?bipy) with Tb(NO3)3?6H2O. The molecular structure and composition of complex 1 were characterized by single crystal X?ray diffraction, FT?IR spectroscopy, thermogravimetric analysis and elemental analysis. Thermal stability and fluorescence emission properties of complex 1 were also evaluated. The results indicate that Tb3+ is eight?coordinated in a tetragonal antiprismatic coordination configuration and coordinates with eight H2O molecules to form [Tb(H2O)8]3+.L3- does not coordinate with metal ion, but only balances the positive charge in the molecule. The formation of hydrogen bonds between the sulfonic acid group of the L3- and the coordinating H2O molecule connects the [Tb(H2O)8]3+ and the L3- to form a one?dimensional chain structure,which in turn expands into a two?dimensional lamellar structure.The fluorescence emission peaks of complex 1 at 395,453 nm are the characteristic peaks of Na3L, and the emission peaks at 545,601,641 nm are the characteristic peaks of Tb3+.

Key words: Coordination complex, Crystal structure, Fluorescence property, Hydrogen bond

摘要:

以1,3,6?萘三磺酸钠(Na3L)、4,4'?联吡啶(4,4'?bipy)、Tb(NO3)3·6H2O为原料,通过水热合成反应制备了Tb配合物[Tb(H2O)8]·(L)·2(4,4'?bipy)·3H2O(配合物1)。利用单晶X?射线衍射、傅里叶红外光谱、热重分析以及元素分析等表征手段,分析了配合物1的分子结构和组成,并且研究了其热稳定性和荧光发射性质。结果表明,Tb3+是八配位,呈四方反棱柱配位构型,与8个H2O分子配位形成[Tb(H2O)8]3+;L3-没有与金属离子配位,只平衡了分子内的正电荷;L3-的磺酸基与配位H2O分子之间形成氢键,将[Tb(H2O)8]3+和L3-相连,形成一维链状结构,进而将其拓展成二维层状结构;配合物1在395、453 nm处的荧光发射峰为Na3L的特征峰,在545、601、641 nm处的荧光发射峰为Tb3+的特征峰。

关键词: 配合物, 晶体结构, 荧光性质, 氢键

CLC Number: 

Cite this article

Lei Guan, Xian Chen, Bowen Fan, Yaxu Chen, Pengpeng Yin, Ying Wang. Hydrothermal Synthesis, Crystal Structure and Fluorescence Property of a Tb Coordination Complex[J]. Journal of Petrochemical Universities, 2023, 36(3): 60-65.

关磊, 陈贤, 范博文, 陈雅旭, 尹鹏鹏, 王莹. Tb配合物的水热合成、晶体结构及荧光性质[J]. 石油化工高等学校学报, 2023, 36(3): 60-65.