作者：王利亚; 王玉芳; 马录芳; 蒋凯合成方法晶体结构磁性特征钴化合物亚氨基硝基氧
摘要：A novel compound [Co(IM2-Py)2(NO3)].(NO3) (IM2-Py =2-(2'-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl) has been prepared and structurally characterized by X-ray diffraction method. It crystallizes in orthorhombic, space group P212121 with a= 11.031(2), b = 13.492(3),c = 20.467(4) A°, V = 3046.0(11 ) A°^3, C24H32CON808, Mr = 619.51, Z = 4, Dc = 1.351 g/cm^3,μ(MoKa)= 0.620 mm^-1, F(000) = 1292, R = 0.0506 and wR = 0.0845 for 3752 observed reflections with I >2σ(I). X-ray analysis reveals that the crystal structure consists of [Co(IM2- Py)2(NO3)]^+ moiety and a NO3^- anion. The cobalt(Ⅱ) ion is six-coordinated with a distorted octahedral geometry. Temperature dependence of susceptibility measurements show that there exist an antiferromagnetic interaction in the compound.
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