Effects of Aromatic Stabilization Energies on Photochromism of New Asymmetrical Azaindole-Containing Diarylethenes
作者:Zhiyuan Sun、Congcong Zhang、Hui Li、Congbin Fan、Gang Liu、Shouzhi Pu
DOI:10.1002/cjoc.201500110
日期:2015.7
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
已经合成了三个新的含有氮杂吲哚部分和可变的杂芳基环的不对称二芳烃。系统地研究了它们的性质,例如光致变色,耐疲劳性,热稳定性,酸致变色和荧光,以阐明杂芳基部分的芳族稳定能(ASE)的影响。结果表明,热稳定性随着可变杂芳基环的芳族稳定能的增加而降低,顺序为噻唑基<噻吩基<吡咯基。此外,还通过刺激酸/碱和光来研究了这些含氮杂吲哚的双硫醚的双重转换行为。将三氟乙酸添加到这些二芳硫醚的溶液中会导致明显的变色移位,并且它们的氮质子化形式也表现出良好的光致变色作用。