钴配位聚合物的晶体、电化学和对EY2-的荧光淬灭性能
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摘要:
A new two-dimensional network cobalt coordination polymer {[Co 1.5 （4,4＇-bipy）·（dmgH 2） 1.5 ·（H 2O）] n ·（en） n ·（13H 2O） n }（ 2 ） was synthesized by hydrothermal synthesis method using a mononuclear cobalt complex [Co （dmgH） （dmgH 2） Cl 2] （ 1 ） as synthesis intermediate and 4,4- bipyridine （4,4＇-bipy） as bridging ligand, a small amount of ethylenediamine（en） was used to adjust the pH. The results of single crystal X-ray diffraction analysis show that the polymer crystalizes in orthorhombic, space group P bcn. Cell Parameters are as follows： a =2.546 30 （8） nm, b =1.591 56 （6） nm, c =1.636 22 （5）nm; α =90.00°, β =90.00°, γ =90.00°, V =6.630 9（4） nm 3, Z =4, F （000）=2 812.00. The crystal structure analysis shows that the Co（Ⅲ） cation is a six-coordinated distorted octahedron with a 4,4’-bipyridyl N atom bridged into a two-dimensional network structure . The two-dimensional network structure stacked into three-dimensional solid structure by weak π-π force. Cyclic voltammetry and fluorescence quenching experiments show that the title coordination polymer has a low redox potential and has a strong fluorescence quenching effect on eosin Y. It can be used as a potential photochemical reduction catalyst for the photocatalytic decomposition of water to obtain hydrogen.
作者:
郑会勤 刘露 樊耀亭
Zheng Huiqin;Liu Lu;FanYaoting(Department of Chemistry and Environment,Henan Finance University,zhengzhou 450046,China;Chemistry and Chemical Engineering,Henan Institute of Science and Technology,Xinxiang 453003,China;College of Chemistry and Molecular Engineering,Zhengzhou University,zhengzhou 450001,China)
机构地区:
河南财政金融学院化学与环境学院 河南科技学院化学化工学院 郑州大学化学与分子工程学院
出处：
《Betway官方客服学报：自然科学版》 CAS 北大核心 2018年第6期61-67,共7页
基金：
国家自然科学基金(21171147) 河南省科技计划项目(182102210279) 河南省教师教育课程改革研究重点研究项目(2018-JSJYZD-035)
关键词：
二维钴配位聚合物 水热合成 晶体结构 电化学性质 荧光淬灭
two-dimensional cobalt coordination polymer hydrothermal synthesis crystal structure electrochemical properties fluorescence quenching
分类号：
O641.4 [理学—物理化学]
