包含 azaindole 一半和一枚可变 heteroaryl 戒指的三新不均匀的 diarylethenes 被综合了。他们的性质例如对光反应变色,疲劳抵抗,热稳定性, acidichromism,和荧光,系统地被调查阐明 heteroaryl 一半的芳香的稳定精力(ASE ) 的效果。结果显示那热稳定性在 thiazyl 的顺序与可变 heteroaryl 戒指的芳香的稳定精力的增长减少了 < thienyl < pyrrolyl。而且,这些包含 azaindole diarylethenes 的双切换行为被酸 / 底和光的刺激也学习。到这些 diarylethenes 的答案的 trifluoroacetic 酸的增加导致了明显的染色过浅的移动,并且他们的 N-protonated 形式也展出了有利对光反应变色。
Three new asymmetrical diarylethenes containing an azaindole moiety and a variable heteroaryl ring have been synthesized. Their properties, such as photochromism, fatigue resistance, thermal stability, acidichromism, and fluorescence, were systematically investigated to elucidate the effects of aromatic stabilization energies (ASE) of the heteroaryl moieties. The results indicated that thermal stability decreased with the increment of the aromatic stabilization energies of the variable heteroaryl rings in the order of thiazyl〈thienyl〈pyrrolyl. Moreover, the dual switching behaviors of these azaindole-containing diarylethenes were also studied by the stimulation of acid/base and light. Addition of trifluoroacetie acid to the solutions of these diarylethenes resulted in obvious hypochromie shifts, and their N-protonated forms also exhibited favorable photochromism.