Triphenylamine derivatives containing nitronyl nitroxide and iminyl   nitroxide - Syntheses, characterization, crystal structures, and   magnetic studies

CORC > 北京大学 > 化学与分子工程学院

	Triphenylamine derivatives containing nitronyl nitroxide and iminyl nitroxide - Syntheses, characterization, crystal structures, and magnetic studies
	Zhang, DQ ; Wang, ZM ; Ding, L ; Zhang, B ; Xu, W ; Zhu, DB ; Yan, CH
刊名	中国化学英文版
	2001
关键词	radicals nitronyl nitroxide/iminyl nitroxide magentic properties crystal structure HIGH T-C GROUND-STATE RADICALS FERROMAGNETISM TRANSITION COMPLEXES COMPOUND CHAINS
英文摘要	New triphenylamine derivatives 1, 2, 3, and 4 were synthesized and characterized by IR, FAB-MS, EPR and EA. All of them displayed similar absorption and fluorescence spectra except compound 1, for which a possible explanation was proposed. Quasi-reversible oxidation waves at about 0.76 V (vs. SCE) and 1.1 V for nitronyl nitroxide and iminyl nitroxide respectively as well as irreversible one at about 1.5 V for triphenylamine group were detected with cyclic voltammetry for compounds 1, 2, 3 and 4. Crystal structures of 2 and 4 were determined by X-ray diffraction analysis. Their crystal data are as follows: for 2: mono-clinic, C2/c, a = 1.69914 (4), b = 1.37435(5), c = 1.24621(5) nm, beta = 106.553(2)degrees, V = 2.7896(2) nm(3), Z = 4; for 4: orthorhombic, Pbca, a = 1.95970(6), b = 1.33096 (4), c = 4.84691 (14) nm, V = 12.6421(7) nm(3), Z = 8. Magnetic studies indicated that all of them showed antiferromagnetic properties in solid state, but with strong intermolecular spin-spin coupling as indicated by the relatively large values of theta, in particular for 4 (theta = - 12 K). Possible spin-spin interaction mechanism was suggested based on the crystal structures of 2 and 4.; Chemistry, Multidisciplinary; SCI(E); 2; ARTICLE; 10; 966-975; 19
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/389099]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, DQ,Wang, ZM,Ding, L,et al. Triphenylamine derivatives containing nitronyl nitroxide and iminyl nitroxide - Syntheses, characterization, crystal structures, and magnetic studies[J]. 中国化学英文版,2001.
APA	Zhang, DQ.,Wang, ZM.,Ding, L.,Zhang, B.,Xu, W.,...&Yan, CH.(2001).Triphenylamine derivatives containing nitronyl nitroxide and iminyl nitroxide - Syntheses, characterization, crystal structures, and magnetic studies.中国化学英文版.
MLA	Zhang, DQ,et al."Triphenylamine derivatives containing nitronyl nitroxide and iminyl nitroxide - Syntheses, characterization, crystal structures, and magnetic studies".中国化学英文版 (2001).