苯并[d]咪唑基Ni(Ⅱ)配合物的合成、晶体结构与荧光性质研究

人工晶体学报 ›› 2021, Vol. 50 ›› Issue (5): 889-893.

苯并[d]咪唑基Ni(Ⅱ)配合物的合成、晶体结构与荧光性质研究

赵明霞¹, 熊丽琴², 常进³, 赵治巨⁴, 齐传民⁵

1.山西工程技术学院矿业工程系,阳泉 045000;
2.上海交通大学生物医学工程学院,上海 200030;
3.太原理工大学生物医学工程学院,太原 030000;
4.邢台学院化学与化工学院,邢台 054001;
5.北京师范大学化学学院,北京 100875

收稿日期:2021-02-23 出版日期:2021-05-15 发布日期:2021-06-15
通讯作者: 齐传民,博士,教授。E-mail:qicmin@sohu.com
作者简介:赵明霞(1980—),女,河北省人,博士研究生。E-mail:zhaomingxiay@163.com
基金资助:
国家自然科学基金(21571021);山西省青年科技研究基金(201701D221283);山西省高等学校科技创新项目(2019L0985);阳泉市重点研发计划(2019G30);山西省高等学校大学生创新创业训练项目(2019001,2020001);河北省高等学校科学研究项目(ZD2018311,ZD2020417);中央引导地方科技发展基金(206Z1402G)

Synthesis, Crystal Structure and Fluorescent Properties of Ni(Ⅱ) Complex with Benzo[d]Imidazole Ligand

ZHAO Mingxia¹, XIONG Liqin², CHANG Jin³, ZHAO Zhiju⁴, QI Chuanmin⁵

1. Department of Mining Engineering, Shanxi Institute of Technology, Yangquan 045000, China;
2. School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China;
3. College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030000, China;
4. College of Chemical Engineering and Biotechnology, Xingtai University, Xingtai 054001, China;
5. College of Chemistry, Beijing Normal University, Beijing 100875, China

Received:2021-02-23 Online:2021-05-15 Published:2021-06-15

摘要/Abstract

摘要： 以3-(4-羧苯基)-7-甲基-2-丙基-3H-苯并[d]咪唑-5-羧酸和六水合氯化镍为原料,采用混合溶剂加热回流方法合成出了一例具有三维超分子结构的镍配合物,并通过X射线单晶衍射、元素分析、红外光谱、紫外-可见光光谱和荧光光谱表征方法对其进行了结构解析和性质表征。X-射线单晶衍射结果表明,配合物属于三斜晶系,P1空间群;其晶胞参数为a=0.778 5(16) nm,b=1.126 6(2) nm,c=1.175 6(2) nm, α=113.63(3)°,β=93.24(3)°,γ=101.00(3)°,V=0.917 1(3) nm³。标题配合物为单核配合物,由4个配体阴离子连接中心Ni(II)离子形成了一维环形链,并进一步通过氢键和π-π堆积作用形成了三维超分子结构。荧光光谱分析结果表明配体和标题配合物均具有良好的荧光性质,且配合物的荧光性质优于配体。

关键词: 苯并[d]咪唑, 镍配合物, 加热回流法, 晶体结构, 3D网络结构, 荧光性质

Abstract: A nickel complex with a three-dimensional supramolecular structure was synthesized through mixed solvent refluxing method using 3-(4-carboxyphenyl)-7-methyl-2-propyl-3H-benzo[d]imidazole-5-carboxylic acid and NiCl₂·6H₂O as raw material. Its structure and property were characterized by X-ray single crystal diffraction, elemental analysis, IR, UV-Vis and fluorescence spectra. Single crystal X-ray diffraction studies reveal that the complex is in the triclinic system, space group of P1 with a=0.778 5(16) nm, b=1.126 6(2) nm, c=1.175 6(2) nm, α=113.63(3)°, β=93.24(3)°, γ=101.00(3)°, V=0.917 1(3) nm³. The title complex is a mononuclear complex which consists of four ligand anions that connect the center Ni(II) cation to form a one-dimensional ring chain, and further forms a three-dimensional supramolecular structure through hydrogen bonding and π-π stacking. Fluorescence spectrum analysis shows that both the ligand and the title complex have good fluorescence properties, and the fluorescence properties of the title complex are better than that of the ligand.

Key words: benzo[d]imidazole, nickle complex, refluxing method, crystal structure, 3D network structure, fluorescence property

中图分类号:

O641.4

赵明霞, 熊丽琴, 常进, 赵治巨, 齐传民. 苯并[d]咪唑基Ni(Ⅱ)配合物的合成、晶体结构与荧光性质研究[J]. 人工晶体学报, 2021, 50(5): 889-893.

ZHAO Mingxia, XIONG Liqin, CHANG Jin, ZHAO Zhiju, QI Chuanmin. Synthesis, Crystal Structure and Fluorescent Properties of Ni(Ⅱ) Complex with Benzo[d]Imidazole Ligand[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2021, 50(5): 889-893.

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