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A new copper(II) compound with imino nitroxide radicals [Cu(IM-MeImz)2]?(SCN)2 (IM-meImz =2-(5-methylimidazol-4-yl)-4,4,5,5-tetramethyl-2-imidazoline-1-oxyl) has been synthesized and characterized structurally and magnetically. It crystallizes in monoclinic, space group P21/c with a = 9.3604(7), b = 10.3012(7), c = 16.6684(12) , β = 105.0290(10)o, V = 1552.25(19) 3, C24H34CuN10O2S2, Mr = 622.27, Z = 2, Dc = 1.331 g/cm3, μ(MoKα) = 0.876 mm-1, F(000) = 650, the final R = 0.0374 and wR = 0.1079. X-ray analysis demonstrates that the IM-MeImz ligand is coordinated to the copper(II) ion as an unusual didentate chelate with a κ2 N(MeImz),O(IM) mode in the complex. The square-planar coordination sites at Cu(II) are occupied by two O and two N atoms from the imino nitroxide radicals. The complex molecules are connected as a onedimensional polymer structure by intermolecular interactions. Magnetic measurements show that there are intramolecular antiferromagnetic interactions between the Cu(II) ion and radicals.
A new copper (II) compound with imino nitroxide radicals [Cu (IM-MeImz) 2] (SCN) 2 (IM-meImz = 2- (5-methylimidazol- It crystallizes in monoclinic space group P21 / c with a = 9.3604 (7), b = 10.3012 (7), c = 16.6684 (12) , β = 105.0290 (10) o, V = 1552.25 (19) 3, C24H34CuN10O2S2, Mr = 622.27, Z = 2, Dc = 1.331 g / cm3, μ (MoKα) = 0.876 mm-1, = 650, the final R = 0.0374 and wR = 0.1079. X-ray analysis demonstrates that the IM-MeImz ligand is coordinated to the copper (II) ion as an unusual didentate chelate with a κ2N (MeImz) mode in the complex. The square-planar coordination sites at Cu (II) are occupied by two O and two N atoms from the imino nitroxide radicals. The complex molecules are connected as a onedimensional polymer structure by intermolecular interactions. Magnetic measurements show that there are intramolecular antiferromagnetic interactions between the Cu (II) ion and radicals.