A new binuclear nickel(II) complex [Ni(µ-C2O4)(rac-cth)2](ClO4)2[rac-cth = rac -5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been prepared and its structure determined. It consists of centrosymmetric [Ni( µ -C2O4)(rac-cth)2]2+ cations separated by perchlorate anions, with a centre of symmetry lying in the middle of the C-C bond of the bis-bidentate oxalate bridge. The tetraazamacrocycle adopts a folded conformation around the nickel atom, which is six coordinated in a distorted octahedral arrangement. Variable temperature magnetic susceptibility measurements (4-300 K) suggest a moderate intramolecular antiferromagnetic interaction between the metal ions ( J = -34.0 cm-1, g = 2.07)
Journal of Coordination Chemistry
Volume 55, 2002 - Issue 5
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Related Research Data
CCDC 150592: Experimental Crystal Structure Determination
Source:
Cambridge Crystallographic Data Centre
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