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A Ferromagnetically Coupled, Bent, Trinuclear Copper(II) Complex: Synthesis, Structure, Hydrogen-Bonding Network, Magnetic Properties and DNA Interaction Study

Sarkar, Sumana and Mondal, Amrita and Chopra, Deepak and Ribas, Joan and Rajak, Kajal Krishna (2006) A Ferromagnetically Coupled, Bent, Trinuclear Copper(II) Complex: Synthesis, Structure, Hydrogen-Bonding Network, Magnetic Properties and DNA Interaction Study. In: European Journal of Inorganic Chemistry, 2006 (17). pp. 3510-3516.

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Abstract

A bent trinuclear copper(II) complex (1) incorporating $_\mu$-phenoxo, $_\mu$-syn-syn carboxylato, and $\mu_3$-chloro bridges and an O,N'N-coordinated reduced Schiff-base ligand is reported. The complex shows an intramolecular ferromagnetic interaction in the solid state. The EPR spectra also support the magnetic behaviour of the complex. In the compound, each copper centre has a square-pyramidal geometry. The separation between the adjacent copper ions is about 3.05 \AA and that between the terminal copper ions is about 5.0 \AA. The com-plex forms a supramolecular architecture through N–H···Cl hydrogen bonding between the amine group of the reduced Schiff-base ligand and the counter chloride anions. Absorption and fluorescence spectral studies and viscosity measurements have been performed to determine the type of interaction with calf-thymus DNA. The nuclease activity of the complex with plasmid DNA is also studied.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Wiley.
Keywords: Copper;Reduced Schiff base;Magnetic properties;Hydrogen bonds;DNA recognition
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 24 May 2008
Last Modified: 19 Sep 2010 04:32
URI: http://eprints.iisc.ernet.in/id/eprint/9023

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