Four new trinuclear {Cu₃(μ₃-OH)(oximate)₃}²⁺ clusters: crystal structure and magnetic behaviour

Saskia Speed; Mercè Font-Bardía; M Salah El Fallah; Ramon Vicente

doi:10.1039/c4dt02215g

Four new trinuclear {Cu₃(μ₃-OH)(oximate)₃}²⁺ clusters: crystal structure and magnetic behaviour

Dalton Trans. 2014 Nov 28;43(44):16919-27. doi: 10.1039/c4dt02215g.

Authors

Saskia Speed¹, Mercè Font-Bardía, M Salah El Fallah, Ramon Vicente

Affiliation

¹ Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain. ramon.vicente@qi.ub.es saskia.speed@qi.ub.es.

PMID: 25300519
DOI: 10.1039/c4dt02215g

Abstract

Four new triangular copper(II) complexes with the fragment {Cu3(μ3-OH)(oximate)3}(2+) and formulae [Cu3(μ3-OH)(μ-Cl)(Py2CNO)3((t)BuPO3H)]·4H2O (1), [Cu3(μ3-OH)(μ-Br)(Py2CNO)3((t)BuPO3H)]·3.5H2O (2), [Cu3(μ3-OH)(μ-Br)(PhPyCNO)3((t)BuPO3H)(MeOH)]·1.5 MeOH (3), [Cu3(μ3-OH)Cl2(PhPyCNO)3]·0.5H2O (4), (Py2CNO = di(2-pyridyl)ketoximate, PhPyCNO = phenyl(2-pyridyl)ketoximate, (t)BuPO3H2 = tert-butylphosphonic acid) are reported. The magnetic properties of compounds 1-4 were studied. The compounds were found to exhibit strong antiferromagnetic coupling and antisymmetric exchange interaction.