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Synthesis, crystal structure and DNA-binding studies of the complex [Co(C10H9N2O4)2] · 3H2O

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Abstract

A novel binuclear Cobalt(II) complex with N-(2-propionic acid)-salicyloyl hydrazone (C10H10N2O4, H3L) was prepared and characterized. The crystal structure of [Co(C10H9N2O4)2] · 3H2O was determined by X-ray single-crystal diffractometry. The Co2+ ion is six-coordinated by the carboxyl and acyl O atoms and azomethine N atoms of two tridentate N-(2-propionicacid)-salicyloyl hydrazone ligands, which form two stable five-numbered rings sharing one side in the keto form. The coordination environment around the Co2+ ion might be described as a distorted octahedron. Abundant hydrogen bonds of the types O-H…N and O-H…O between the water molecules and ligands not only form the three-dimensional network, but also provide an extrastability for the crystal. The complex was studied for the interaction with calf thymus DNA by electronic absorption titration and emission titration. The results show that the complex is bound to calf thymus DNA mainly by intercalation.

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Authors and Affiliations

  1. College of Chemistry and Material Science, Northwest University and Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry Education, Xi’an, Shanxi, 710069, P.R. China

    Feng Liu, Wie-Ping Zhang, Shui-Yang He & Liu-Jie Wang

  2. Quality Management Department Shanxi Heavy Duty Automobile Co, Ltd, Xi’an, Shanxi, 7102000, P.R. China

    Feng Liu

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  1. Feng Liu
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  2. Wie-Ping Zhang
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Correspondence to Feng Liu.

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Liu, F., Zhang, WP., He, SY. et al. Synthesis, crystal structure and DNA-binding studies of the complex [Co(C10H9N2O4)2] · 3H2O. Russ J Coord Chem 35, 454–459 (2009). https://doi.org/10.1134/S1070328409060116

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  • DOI: https://doi.org/10.1134/S1070328409060116

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