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The title compound [Co(IM2-Py)(PCA)(N3)2] (IM2-Py = 2-(2?-pyridyl)-4,4,5,5-te- tramethylimidazoline-1-oxyl, PCA = 2-pyridine carboxylic acid) has been prepared and structurally characterized by elemental analysis, IR spectra and X-ray diffraction. It crystallizes in monoclinic, space group P21/c with a = 13.169(3), b = 11.235(2), c = 15.596(3) ?, β = 104.70(3)o, V = 2232.0(8) ?3, C18H21CoN10O3, Mr = 484.38, Z = 4, Dc = 1.441 g/cm3, μ(MoKα) = 0.811 mm-1, F(000) = 1000, the final R = 0.0563 and wR = 0.1010. The nitronyl nitroxide (NIT2Py) was reduced to IM2-Py, and another NIT2Py oxidated to PCA. The self-redox reaction between the radicals was observed. The cobalt(II) ion is six-coordinated into a distorted octahedral geometry. Meanwhile, the intermolecular hydrogen bonds result in the dimer.
The title compound [Co (IM2-Py) (PCA) (N3) 2] (IM2-Py = 2- (2? -pyridyl) -4,4,5,5-tera- methylimidazoline-1-oxyl, PCA = 2 crystallizes in monoclinic, space group P21 / c with a = 13.169 (3), b = 11.235 (2), c = 15.596 (3) ?,? = 104.70 (3) o, V = 2232.0 (8)? 3, C18H21CoN10O3, Mr = 484.38, Z = 4, Dc = 1.441 g / cm3, The nitronyl nitroxide (NIT2Py) was reduced to IM2-Py, and another NIT2Py oxidated to PCA. The self-redox reaction between the radicals was observed. cobalt (II) ion is six-coordinated into a distorted octahedral geometry. Meanwhile, the intermolecular hydrogen bonds result in the dimer.