The new decanuclear copper(II) cluster [Cu5(β-alaha)4Cl2]2·2HCl·15H2O, its structure, spectroscopy and magnetism
摘要:
The new polynuclear copper(II) cluster with beta-alaninehydroxamic acid of formula [Cu-5(beta-alaha)(4)Cl-2](2) center dot 2HCl center dot 15H(2)O, where beta-alaha stands for beta-alaninehydroxamate (C3H6N2O22- ), was obtained. Single crystals of the complex were growing up in water solution. The cluster is composed of two pentameric subunits joined together by chloride bridges. Magnetic studies showed rather strong spin correlation within pentanuclear clusters and weaker interaction between them. Spectroscopic behavior of the single crystals of the cluster were studied at 293 and 4 K. Strong interactions of copper ions with different symmetry sites and strong electron phonon coupling lead to broad unsplit spectra even at 4 K. (C) 2006 Elsevier Ltd. All rights reserved.
The new polynuclear copper(II) cluster with beta-alaninehydroxamic acid of formula [Cu-5(beta-alaha)(4)Cl-2](2) center dot 2HCl center dot 15H(2)O, where beta-alaha stands for beta-alaninehydroxamate (C3H6N2O22- ), was obtained. Single crystals of the complex were growing up in water solution. The cluster is composed of two pentameric subunits joined together by chloride bridges. Magnetic studies showed rather strong spin correlation within pentanuclear clusters and weaker interaction between them. Spectroscopic behavior of the single crystals of the cluster were studied at 293 and 4 K. Strong interactions of copper ions with different symmetry sites and strong electron phonon coupling lead to broad unsplit spectra even at 4 K. (C) 2006 Elsevier Ltd. All rights reserved.