Journal of Liaoning Petrochemical University

Journal of Liaoning Petrochemical University ›› 2023, Vol. 43 ›› Issue (5): 29-33.DOI: 10.12422/j.issn.1672-6952.2023.05.005

• Material Science and New Energy • Previous Articles     Next Articles

Synthesis, Crystal Structure and Fluorescence Property of a Copper Coordination Complex with N⁃Donor Ligand

Lei GUAN(), Bowen FAN, Ying WANG(), Xin WANG   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2022-01-17 Revised:2022-03-08 Published:2023-10-25 Online:2023-11-06
  • Contact: Ying WANG

一个含氮配体铜配合物的合成、结构及荧光性质

关磊(), 范博文, 王莹(), 王欣   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 通讯作者: 王莹
  • 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@126.com
  • 基金资助:
    辽宁省教育厅科学研究经费项目(LJKZ0371)

Abstract:

A mononuclear Cu complex Cu0.5(4,4'?bipy)(H2O)·L·0.5(4,4'?bipy)·2H2O (1) was obtained by hydrothermal reaction with Cu2+ as the central ion and 4,4'?bipy as the nitrogen?containing auxiliary ligand. Its structure and composition were characterized by modern characterization methods, such as X?ray single crystal diffraction, elemental analysis and infrared spectrum. The results show that Cu2+ is six coordinated with four nitrogen atoms of 4,4'?bipy molecules and two oxygen atoms of H2O molecules, showing a distorted octahedral coordination configuration. L2- anion only balances the positive charges in compound 1 and does not participate in the coordination of metal Cu2+. Cu2+ coordinates with 4,4'?bipy and H2O molecules to form a lattice layered structure [Cu(4,4'?bipy)2(H2O)2]2+, the hydroxyl group of L2- anion and free H2O molecules form hydrogen bonds with H2O molecules in the layered structure respectively, which increases the thermal stability of H2O molecules in compound 1. The fluorescence emission of compound 1 is at 409 nm, which can be attributed to the intraligand emission state. Compared with the ligand, there is a slight red shift, which may be caused by the coordination between 4,4'? bipy ligand and Cu2+.

Key words: N?donor ligand, Fluorescence property, Copper ion, Structure

摘要:

以Cu2+为中心离子、4, 4'?联吡啶(4,4'?bipy)为辅助配体,通过水热反应得到一个单核Cu配合物Cu0.5(4,4'?bipy)(H2O)·L·0.5(4,4'?bipy)·2H2O(1) (NaL=3?羟基苯磺酸钠)。采用X?射线单晶衍射、元素分析以及红外光谱表征了其结构和组成。结果表明,Cu2+是六配位,呈扭曲的八面体配位构型,与四个4,4'?bipy分子的氮原子以及两个H2O分子的氧原子配位;L2-只平衡化合物1中的正电荷,不与Cu2+配位;Cu2+与4,4'?bipy和H2O分子配位形成方格形层状结构[Cu(4,4'?bipy)2(H2O)2]2+L2-的羟基以及游离的H2O分子分别与层状结构中的H2O分子形成氢键,提高了水分子的热稳定性;化合物1的荧光发射在409 nm,为配体内荧光发射;与NaL配体相比,发生轻微红移,可能是4,4'?bipy配体与Cu2+配位作用所致。

关键词: 含氮配体, 荧光性质, 铜离子, 结构

CLC Number: 

Cite this article

Lei GUAN, Bowen FAN, Ying WANG, Xin WANG. Synthesis, Crystal Structure and Fluorescence Property of a Copper Coordination Complex with N⁃Donor Ligand[J]. Journal of Liaoning Petrochemical University, 2023, 43(5): 29-33.

关磊, 范博文, 王莹, 王欣. 一个含氮配体铜配合物的合成、结构及荧光性质[J]. 辽宁石油化工大学学报, 2023, 43(5): 29-33.