A novel oxalato-bridged rhenium(IV)-copper(II) compound, namely [ReIVBr4(mu-ox)CuII(bpy)2] (1), hasbeen obtained by reacting (PPh4)2[ReBr4(ox)] with Cu(CF3SO3)2 and 2,2'-bpy in CH3CN, and its crystalstructure determined by single-crystal X-ray diffraction. Intermolecular Br...Br interactions and nonbonding Cu...Br type contacts between the heterobimetallic dinuclear units lead to a two- dimensionalsupramolecular structure. Compound 1 behaves magnetically as a [ReIVCuII]2 tetranuclear species withweak antiferromagnetic interactions through the oxalato bridge and intermolecular Br...Br contacts.
Unexpected magnetic topology in the heterobimetallic [Re(IV)Br(4)(mu-ox)Cu(II)(bpy)(2)] compound
Armentano D;DE MUNNO, Giovanni;
2011-01-01
Abstract
A novel oxalato-bridged rhenium(IV)-copper(II) compound, namely [ReIVBr4(mu-ox)CuII(bpy)2] (1), hasbeen obtained by reacting (PPh4)2[ReBr4(ox)] with Cu(CF3SO3)2 and 2,2'-bpy in CH3CN, and its crystalstructure determined by single-crystal X-ray diffraction. Intermolecular Br...Br interactions and nonbonding Cu...Br type contacts between the heterobimetallic dinuclear units lead to a two- dimensionalsupramolecular structure. Compound 1 behaves magnetically as a [ReIVCuII]2 tetranuclear species withweak antiferromagnetic interactions through the oxalato bridge and intermolecular Br...Br contacts.File in questo prodotto:
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