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Journal of Coordination Chemistry Volume 63, 2010 - Issue 7
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Original Articles

Synthesis, crystal structure, and DNA-binding of a 3-D netlike supramolecular manganese picrate complex with 2,6-bis(benzimidazol-2-yl)pyridine

Zhen-Zhong Yan Department of Pharmaceutics and Chemical Engineering, Taizhou University, Linhai 317000, PR ChinaCorrespondence[email protected]
,
Zhi-Hong Xu College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, PR China
,
Guo-Liang Dai Department of Pharmaceutics and Chemical Engineering, Taizhou University, Linhai 317000, PR China
,
Hua-Ding Liang Department of Pharmaceutics and Chemical Engineering, Taizhou University, Linhai 317000, PR China
&
Song-Lin Zhao Department of Pharmaceutics and Chemical Engineering, Taizhou University, Linhai 317000, PR China
Pages 1097-1106 | Received 26 Jun 2009, Accepted 17 Nov 2009, Published online: 25 Mar 2010
 
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Abstract

Manganese picrate with 2,6-bis(benzimidazol-2-yl)pyridine (L) has been prepared and characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. The complex crystallizes in the triclinic system, space group P–1 with a = 14.234(3) Å, b = 14.324(2) Å, c = 15.242(2) Å, α = 77.569(2)°, β = 63.350(3)°, γ = 82.130(2)°, and Z = 2. Interaction of the complex with calf-thymus DNA (CT-DNA) has been investigated with diverse spectroscopic techniques and viscosity measurements, and the binding constant is 1.76 × 105 mol−1. Results suggest that the complex bind to CT-DNA via intercalation.

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