Citation: MAO Xian-Jie, ZHOU Li-Hua, FU Si-Lian, YIN Hang, ZHAO Xiao-Lei, WU Wei-Na, WANG Yuan. Crystal Structures and Fluorescence Property of Cu(Ⅱ)/Zn(Ⅱ) Complexes of 1-(3-Ethylpyrazin-2-yl) ethylidene-4-phenylsemicarbazide[J]. Chinese Journal of Inorganic Chemistry, ;2017, 33(1): 163-168. doi: 10.11862/CJIC.2017.023 shu

Crystal Structures and Fluorescence Property of Cu(Ⅱ)/Zn(Ⅱ) Complexes of 1-(3-Ethylpyrazin-2-yl) ethylidene-4-phenylsemicarbazide

MAO Xian-Jie ¹ ,
ZHOU Li-Hua ² ,
FU Si-Lian ² ,
YIN Hang ² ,
ZHAO Xiao-Lei ^1,*,, ,
WU Wei-Na ^1,*,, ,
WANG Yuan ¹

1.
College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China
2.
School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China

Corresponding author: ZHAO Xiao-Lei, zhaoxiaolei@hpu.edu.cn WU Wei-Na, wuwn08@hpu.edu.cn
Received Date: 9 August 2016
Revised Date: 9 November 2016

Figures(4)

Two complexes, namely[Cu(HL)(H₂O)(NO₃)]NO₃ (1) and [Zn(HL)Cl₂] (2) (where HL is 1-(3-ethylpyrazin-2-yl)ethylidene-4-phenylsemicarbazide) have been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and IR spectroscopy. X-ray diffraction analysis results show that in complex 1, the center Cu(Ⅱ) ion is penta-coordinated by one neutral tridentate semicarbazone, one coordinated water molecule and one monodentate nitrate, thus giving a distorted square pyramid coordination geometry. The coordination geometry of the Zn(Ⅱ) ion in complex 2 is same as that of the Cu(Ⅱ) ion in complex 1, while with N₂OCl₂ donor set. In methanol solution, the fluorescence spectra of the ligand HL and complex 2 are quite similar, whilst the emission peak of complex 1 has slightly red-shift, primarily due to the charge transfer between the ligand and metal ion. CCDC:1497370, 1; 1497371, 2.
- semicarbazone,
- Cu(Ⅱ) complex,
- Zn(Ⅱ) complex,
- pyrazine,
- fluorescence
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