Synthesis and Magnetic Properties of Stable Radical Derivatives Carrying a Phenylacetylene Unit
作者:Shogo Miyashiro、Tomoaki Ishii、Youhei Miura、Naoki Yoshioka
DOI:10.3390/molecules23020371
日期:——
A nitronyl nitroxide derivative, 2-phenylethynyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-oxide (1), and two verdazyl derivatives carrying a phenylacetylene unit, 1,5-diphenyl-3-phenylethynyl-6-oxo-1,2,4,5-tetrazin-2-yl (2) and 1,5-diisopropyl-3-phenylethynyl-6-oxo-1,2,4,5-tetrazin-2-yl (3), were synthesized and their packing structures were studied by X-ray crystallographic analysis and
硝酰基硝基氧化物衍生物,2-苯基乙炔基-4,4,5,5-四甲基-4,5-二氢-1H-咪唑-1-氧基-3-氧化物(1)和两种带有苯基乙炔单元的Verdazyl衍生物1 ,5-二苯基-3-苯基乙炔基-6-氧代1,2,4,5-四嗪-2-基(2)和1,5-二异丙基-3-苯基乙炔基-6-氧代1,2,4,合成了5-四嗪-2-基(3),并通过X射线晶体学分析对其堆积结构进行了研究,并对其磁性进行了固态表征。1和3具有孤立的双峰自旋状态,而2则形成反铁磁耦合对(2J / kB = -118 K)。密度泛函理论(DFT)计算表明,苯基中极化的自旋密度随苯环和自由基平面之间的二面角的增加而降低。