Abstract
| - The first azide(μ1,1)-bridged binuclear cobalt(II) complex with achelated imino nitroxide radical, [Co2(immepy)2(N3)4]·2EtOH, wasstructurally and magnetically characterized, where immepy =4,4,5,5-tetramethyl-2-(6‘-methyl-2‘-pyridyl) imidazoline-1-oxyl. Fivenitrogen atoms complete the coordination sphere of the Co(II) ion,showing a distorted trigonal bipyramid geometry. Two N3- anionsact as bridges between cobalt ions in the μ1,1 coordination mode,resulting in a binuclear structure with an inversion center. Magneticstudies show that ferromagnetic couplings occurred between theadjacent cobalt(II) ions through N3-(μ1,1) bridges, and antiferromagnetic couplings between the cobalt(II) ions and organic radicals.
- The first azide(μ1,1)-bridged binuclear complex with a chelated imino nitroxide radical, [Co2(immepy)2(N3)4]·2EtOH, has been synthesized and structurally characterized. Magnetic studies show that ferromagnetic couplings occurred between the adjacent cobalt(II) ions through N3-(μ1,1) bridges, and antiferromagnetic couplings between the cobalt(II) ions and organic radicals.
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