Magnetic properties of copper(II) complexes with some hydrazones of substituted salicylaldehydes
作者:L. D. Popov、Yu. P. Tupolova、S. I. Levchenkov、V. V. Lukov、V. A. Kogan
DOI:10.1134/s1070328407030098
日期:2007.3
A series of novel mono- and binuclear copper(II) complexes with substituted salicylaldehyde acyl-hydrazones H2L of the formula CuL center dot xH2O (x = 0 and 1) and [Cu(HL)](ClO4)(CH3OH) were synthesized. The isolated dimeric complexes of copper acetate were found to exist as isomers with different bridging atoms. In dimers showing a superexchange between the paramagnetic centers through bridging phenoxide O atoms, the anti ferromagnetic exchange couplings were much stronger than those in complexes with bridging O atoms of the a-oxyazine fragment.