Synthesis, characterization and properties of dinuclear high-spin five-coordinate 3d metal complexes with NN-bis(2-diethylaminoethyl)-2-hydroxyethylamine

Add time:09/06/2019    Source:sciencedirect.com

Compounds of general formula M(bdhe)ClO4 (M = Mn, Fe, Co, Ni, Cu, Zn) are formed by reaction between the tripod-like ligand NN-bis(2-diethylaminoethyl)-2-hydroxyethylamine (bdhe) and metal diperchlorate in acetone. Conductometric, spectroscopic and X-ray diffraction data indicate that all these compounds contain dinuclear high-spin five-coordinate M2(bdhe)2+2 cations. Variable temperature (80–290 K) magnetic susceptibility data show the existence of a large antiferromagnetic exchange interaction for the copper(II) complex; weak antiferromagnetic interactions have been also observed for the cobalt(II) and nickel(II) derivatives.

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