Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 67, Issue 10, Pages 1771-1781Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958972.2014.917632
Keywords
Bis(2-benzimidazolylmethyl)amine; Crystal structure; Manganese(II) complex; Silver(I) complex; DNA-binding property; Antioxidant property
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Funding
- National Natural Science Foundation of China [21367017]
- Fundamental Research Funds for the Gansu Province Universities [212086]
- National Natural Science Foundation of Gansu Province [1212RJZA037]
- 'Qing Lan' Talent Engineering Funds for Lanzhou Jiaotong University
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Two Mn(II) and Ag(I) complexes, [Mn(IDB)(2)](pic)(2) (pic = picrate) (1) and [Ag-2(IDB)(2)](pic)(2) (2) (IDB = bis(2-benzimidazolylmethyl) amine), have been synthesized and characterized by elemental analysis, IR, UV-vis spectral measurements, and X-ray single-crystal diffraction. Single-crystal X-ray diffraction revealed that Mn(II) is six-coordinate by six nitrogens from two IDB as a distorted octahedron, and the Ag(I) complex revealed two Ag(I) ions bonded to two IDB ligands through six nitrogens, resulting in an asymmetric binuclear structure. The complexes can bind to DNA through an intercalative mode, and the affinity for DNA is stronger for the Mn(II) complex than the Ag(I) complex; the Mn(II) complex exhibits excellent antioxidative activity.
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