Publications (1)1.02 Total impact
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Article: Synthesis, structure, and DNA-binding properties of manganese(II) and zinc(II) complexes with tris(N-methylbenzimidazol-2-ylmethyl)amine ligand
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ABSTRACT: Tris(N-methylbenzimidazol-2-ylmethyl)amine (Mentb) and its two complexes, [Mn(Mentb)(DMF)(H2O)](pic)2 1 and [Zn(Mentb)(pic)](pic) 2 (pic=picrate), have been synthesized and characterized by physico-chemical and spectroscopic methods. Single crystal X-ray diffraction revealed that the two complexes have different structures. In complex 1, the coordination sphere around Mn(II) is distorted octahedral, whereas in complex 2 the coordination sphere around Zn(II) is distorted trigonal bipyramidal. The DNA-binding properties of the free ligand and its two complexes have been investigated by electronic absorption, fluorescence, and viscosity measurements. The results suggest that the ligand and its two complexes bind to DNA via an intercalation binding mode, and their binding affinity for DNA follows the order 1>2>ligand.Transition Metal Chemistry 05/2012; 36(1):21-28. · 1.02 Impact Factor
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2012
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Lanzhou Jiaotong University
Lanzhou, Gansu Sheng, China
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