КООРДИНАЦИОННАЯ ХИМИЯ, 2017, том 43, № 1, с. 39–45 УДК 541.49 SYNTHESIS AND CRYSTAL STRUCTURES OF THE Cu(II) AND Co(II) COMPLEXES CONTAINING PHENOL-SUBSTITUTED NITRONYL AND IMINO NITROXIDE © 2017 Y. J. Zhang1 , J. H. Yang1, 2 , J. J. Wang1 , Y. Zhang1, 2 *E-mail: chenjinghao2014@163.com Received November 15, 2015 Two new complexes, [Cu(hfac)2(NITpho)]n (I) and [Co(Hfac)2(IMpho)2)] (II) (hfac = hexafluoroacetylacetonate, NITPhO = 2-(2-hydroxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide, IMpho = 2-(2hydroxyphenyl)-4,4,5,5-tetramethylimidazole-1-oxyl), have been prepared and characterized by elemental analysis, IR spectroscopy, UV-Vis absorption spectrum and single-crystal X-ray diffraction (CIF files CCDC nos. 1435770 (I), 980113 (II)). <...> X-ray diffraction measurements of I and II revealed that I is a one-dimensional metal-radical alternating zig-zag chain structure, but II is only a mononuclear structure. <...> The family of nitronyl nitroxide radicals is denoted R– Nit where R is the moiety attached to the five-membered ring of the nitronyl nitroxide group [3]. <...> For instance, Takayama et al. prepared the nitronyl nitroxide radical with photochromic substituents like diarylethene, and found that its Cu complex shows magnetic photoswitching phenomenon [4]. <...> In this paper, we report two new complexes, [Cu(hfac)2(NITpho)]n (I) and [Co(hfac)2(IMpho)2] (II) (hfac = hexafluoroacetylacetonate, NITPhO = 2(2-hydroxyphenyl)-4,4,5,5-tetramethylimidazoline1-oxyl-3-oxide, IMpho = 2-(2-hydroxyphenyl)4,4,5,5-tetramethylimidazole-1-oxyl). <...> X-ray diffraction shows that I is a one-dimensional metal-radical alternating chain structure, but II is only a mononuclear structure. <...> IMHR NH N O − + OH , and J. Chen1, 2, * 1College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455002 P.R. China 2School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, 450052 P.R. China 40 EXPERIMENTAL Co(hfac)2 ⋅ 2H2O were prepared as the previous reported [10]. <...> The diffraction data were collected on a Bruker APEX-II CCD single-crystal X-ray diffractometer. <...> The solution was allowed to stand at 4°C for one week to give black blue <...>