Synthesis, Crystal Structure and DNA Binding Studies of a New Binuclear Cobalt(III) Complex Bridged Both by mi-Peroxo and mi-Hydroxyl Groups

• Autorzy: Jiang M. , Li Y. T. , Wu Z. Y. , Peng W. B. , Li Q. L.
• Języki publikacji: EN

Abstrakty

EN

A new binuclear cobalt(III) complex bridged both by mi-peroxo and mi-hydroxyl groups, and end-capped with 4,4 -dimethyl-2,2 -bipyridine (Me2bpy), namely, [Co2( -O2)( -OH)(Me2bpy)4](ClO4)3, has been synthesized and characterized by elemental analysis, IR, UV and single-Crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P21/c and Z = 4, with a = 24.148(5) capital A, b = 10.628(2) capital A, c = 16.306(3) ?, and b = 90.74(3)°. The single crystal X-ray analysis reveals that the complex is composed of three per chlorate anions and a binuclear cobalt(III) cation, in which the cobalt(III) atoms are bridged both by hydroxyl and peroxo groups. Each cobalt(III) atom exhibits an octahedral geometry. A three-dimensional supramolecular arrangement in the crystal is generated by non-classical hydrogen bonds. The DNA-Binding properties of the complex were explored by using absorption and emission spectra and electrochemical methods. The result suggests that the binuclear cobalt(III) complex interacts with herring sperm DNA (HS-DNA) in the mode of intercalation with the intrinsic binding constant of 1.1×103 M-1.

Słowa kluczowe

EN

dicobalt(III) complex; mi-hydroxyl-bridge; mi-peroxo-bridge; crystal structure; three-dimensional supramolecular structure; DNA-interaction

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2009
• Tom: Vol. 83, nr 3
• Strony: 349--361
• Opis fizyczny: Bibliogr. 46 poz., rys.

Twórcy

autor

Jiang M.

autor

Li Y. T.

autor

Wu Z. Y.

autor

Peng W. B.

autor

Li Q. L.

• Marine Drug & Food Institute, Ocean University of China, 5 Yushan Road, Qingdao, Shandong, 266003, P.R. China,

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