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Synthesis, Crystal Structure and DNA-Binding Property of Ag(I) Complex with 1-(3-Ethylpyrazin-2-yl)ethylidene-4-phenylsemicarbazide
Author NameAffiliationE-mail
WU Hao Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China  
WANG Yuan Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China wangyuan08@hpu.edu.cn 
ZHANG Ling Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China  
KANG Rui-Fang Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China  
WU Wei-Na Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China wuwn08@hpu.edu.cn 
Abstract: The title complex[Ag2(HL)(NO3)2]n (1) (HL=1-(3-ethylpyrazin-2-yl)ethylidene-4-phenylsemicarbazide) has been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and IR spectroscopy. X-ray diffraction analysis results show that in 1, HL acts as a neutral tetradentate ligand to connect with two Ag(I) centers, one of which adopts a distorted square pyramid coordination geometry involving one HL ligand with ON2 donor set (carbonyl O, imine N, and pyrazine N1 atoms) and two monodentate nitrate anions; while the other one is four-coordinated with one monodentate nitrate anion, one bidentate nitrate anion and pyrazine N4 atom, thus giving a planar square coordination geometry. Adjacent Ag(I) ions are further connected by bridged nitrate anions to form a 2D framework; Moreover, the fluorescence spectra indicate that the interaction of the complex 1 with DNA is stronger than that of the ligand HL.
Keywords: semicarbazone  Ag(I)complex  pyrazine  DNA interaction
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WU Hao,WANG Yuan,ZHANG Ling,KANG Rui-Fang,WU Wei-Na.Synthesis, Crystal Structure and DNA-Binding Property of Ag(I) Complex with 1-(3-Ethylpyrazin-2-yl)ethylidene-4-phenylsemicarbazide[J].Chinese Journal of Inorganic Chemistry,2018,34(6):1137-1142.
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Chinese Journal of Inorganic Chemistry