University of Cagliari
Structure and Characterization of [Pt(Me2pipdt)2][Pt(mnt)2]2 and its Unusual Magnetic Properties Associated with a Non-Regular One-Dimensional [Pt(mnt)2] Stack
DEPLANO, PAOLA;MERCURI, MARIA LAURA;PILIA, LUCA;SERPE, ANGELA;CONCAS, GIORGIO;CONGIU, FRANCESCO;SANNA, SAMUELE
2006-01-01
Abstract
For electro-oxidation of [Pt(Me2pipdt)2][Pt(mnt)2] (Me2pipdtN,N′-dimethyl-piperazine-2,3-dithione; mnt = maleonitrile-2,3-dithiolate) (1a) the novel salt [Pt(Me2pipdt)2][Pt(mnt)2]2 (2a) has been prepared and characterised. 2a exhibits segregated chains of anionic and cationic complexes. The anions generate a non-regular stack with the separation between the planes. The cations are perpendicular to the anions and interposed between those stacks in a ribbon fashion. Magnetic measurements show the presence of a magnetic transition between the behaviour of an antiferromagnetic alternating-exchange chain and the behaviour of a set of antiferromagnetic dimers.
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