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Ferromagnetic interactions in a bis(μ-end-on azido)cobalt(II) linear trimer

Ferromagnetic interactions in a bis(μ-end-on azido)cobalt(II) linear trimer,10.1016/j.inoche.2008.12.004,Inorganic Chemistry Communications,Xun Lin,Ju

Ferromagnetic interactions in a bis(μ-end-on azido)cobalt(II) linear trimer   (Citations: 3)
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A linear trinuclear Co(II) compound, [Co3(μ1,1-N3)4(N3)2(H2O)2(bpbp)2]·2H2O (1, bpbp=3,3′-bis-Dimethylamino-1,1′-pyridine-2,6-diyl-bispropenone), is reported. The central Co(II) ion is bridged to Co(II) ions on both sides by four end-on azide (μ1,1-N3-) ligands resulting in a centrosymmetric trimer with adjacent Co⋯Co distance of 3.233Å. Each Co(II) ion possesses distorted octahedral geometry, the central one is coordinated by two aqua ligands and four μ1,1-N3- nitrogen atoms and each terminal Co(II) is coordinated by two μ1,1-N3- nitrogen atoms, one terminal N3- nitrogen atom and capped by terminal tridentate bpbp ligand. Variable temperature magnetic studies indicate ferromagnetic coupling between adjacent Co(II) ions within the trimer.
Journal: Inorganic Chemistry Communications - INORG CHEM COMMUN , vol. 12, no. 2, pp. 154-156, 2009
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