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Crystal Structures and DNA Interaction Properties of Ni(Ⅱ) and Cd(Ⅱ) Complexes with a Semicarbazone Ligand Bearing Pyrazine Unit |
Author Name | Affiliation | E-mail | MAO Pan-Dong | College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China | | ZHAO Xiao-Lei | College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China | zhaoxiaolei@hpu.edu.cn; | SHAO Zhi-Peng | School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China | | LI Min | School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China | | WU Wei-Na | College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China | wuwn08@hpu.edu.cn | WANG Yuan | College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China | |
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Abstract: Two complexes, namely[NiL2]·CH3OH·0.5H2O (1) and[Cd(HL)Cl2)] (2) (HL=1-(3-methylpyrazin-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 the central Ni(Ⅱ) ion in complex 1 is surrounded by two independent anionic ligands with N2O donor set, thus possesses a distorted octahedral coordination geometry. However, in complex 2, the Cd(Ⅱ) ion with a distorted square pyramidal is coordinated with one neutral tridentate ligand HL and two chloride anions. In addition, the fluorescence spectra indicate that the interactions of the complexes with DNA are stronger than that of the ligand HL. CCDC 1479242:1; 1479243:2. |
Keywords: semicarbazone Ni(Ⅱ) complex Cd(Ⅱ) complex pyrazine crystal structure DNA interaction |
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MAO Pan-Dong,ZHAO Xiao-Lei,SHAO Zhi-Peng,LI Min,WU Wei-Na,WANG Yuan.Crystal Structures and DNA Interaction Properties of Ni(Ⅱ) and Cd(Ⅱ) Complexes with a Semicarbazone Ligand Bearing Pyrazine Unit[J].Chinese Journal of Inorganic Chemistry,2017,33(5):890-896. |
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