作者:Masahiro Minabe、Yutaka Takabayashi、Yuji Setta、Hidenao Nakamura、Takao Kimura、Motohiro Tsubota
DOI:10.1246/bcsj.69.3633
日期:1996.12
isomeric mixtures due to the 9-iminofluorene moiety. The electronic spectra of these azines show an intramolecular charge transfer; the red shift beyond 250 nm is observed in the case of 9-[p-(diethylamino)benzylidenehydrazono]-2,4,7-trinitrofluorene, compared to the mother azine. 9-[p-(Pentyloxy)benzylidenehydrazono]-2,7-dinitrofluorene and some of the homologs possess a liquid-crystalline property; the
通过相应的芴酮腙和对位取代的苯甲醛反应得到标题吖嗪。由不对称芴酮形成的腙提供构型异构体;E-异构体在热力学上比Z-异构体更稳定。来自对称芴酮的标题吖嗪的结构被指定为 (s-trans/E) 形式。由于9-亚氨基芴部分,来自不对称芴酮的吖嗪产生异构混合物。这些吖嗪的电子光谱显示了分子内电荷转移;与母吖嗪相比,在 9-[p-(二乙氨基) 亚苄基肼]-2,4,7-三硝基芴的情况下观察到红移超过 250 nm。9-[p-(Pentyloxy)benzylidenehydrazono]-2,7-dinitrofluorene 和一些同系物具有液晶性质;