Effects of Aromatic Stabilization Energies on Photochromism of New Asymmetrical Azaindole‐Containing Diarylethenes |
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Authors: | Zhiyuan Sun Congcong Zhang Hui Li Congbin Fan Gang Liu Shouzhi Pu |
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Affiliation: | Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, China |
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Abstract: | 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 thiazylN‐protonated forms also exhibited favorable photochromism. |
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Keywords: | photochromism diarylethene azaindole aromatic stabilization energy acidichromism fluorescence |
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