SCHEDULED MAINTENANCE
A new cube-based dodecanuclear cobalt(ii) cluster with azide and tetrazolate ligands exhibiting ferromagnetic ordering
Abstract
A new cubane-based Co(II) compound, [Co12(5-PT)6(CO3)(N3)2(O)4(CH3O)6(H2O)18] (1) (5-HPT = 5-phenyl-1H-tetrazole), was synthesized by reaction of 5-HPT, CoCl2·6H2O and NaN3 in a methanol solution. In 1, a Co12 cluster based on three identical Co4O2(ON)2 cubane units bridged by a μ6-carbonate ligand is linked by π–π stacking interactions between phenylene groups, forming a 3D supramolecular structure. Magnetic investigations indicate that compound 1 exhibits long-range ferromagnetic ordering at about 9 K. The cube-based Co12 clusters with μ6-CO32− bridges are unprecedented.
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