Photochromic behavior and mechanism of indole thiosemicarbazide derivates in amorphous powder, solution and nanofiber

被引：7
作者：
Che, Yuanyuan [1 ]
Liu, Lang [1 ]
Zhao, Jianzhang [1 ,2 ,3 ]
Yu, Yuming [1 ,2 ]
Zhao, Xianmei [1 ]
机构：
[1] Xinjiang Univ, Inst Appl Chem, Key Lab Energy Mat Chem, Minist Educ, Urumqi 830046, Xinjiang, Peoples R China
[2] Xinjiang Univ, Sch Chem & Chem Engn, Urumqi 830046, Xinjiang, Peoples R China
[3] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, E-208 West Campus,2 Ling Gong Rd, Dalian 116024, Peoples R China
来源：
DYES AND PIGMENTS | 2019年 / 169卷
基金：
中国国家自然科学基金;
关键词：
Photochromism; Amorphous powder; Nanofiber; Schiff bases; Indole; Intermolecular proton transfer; VISIBLE-LIGHT; SOLID-STATE; SCHIFF-BASES; DIARYLETHENE; FLUORESCENCE; SPIROPYRAN; COMPOUND; SWITCHES; CRYSTAL; OXIDES;
D O I：
10.1016/j.dyepig.2019.04.009
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A series of Schiff bases containing the indole group were synthesized. The compound 2-[(1-methyl-1H-indol-3-yl)methylene] hydrazinecarbothioamide (4) exhibits excellent reversible photochromic properties both in solid - solid state and solution. Moreover, the nanofiber containing the compound 4 also shows excellent photo chromic properties, which are better than the amorphous powder of 4 itself. Based on the experiment results and theoretical calculation, we confirm that the photochromic properties originate from the intermolecular proton transfer, resulting in the isomerization of the thioketone - form and the thioalcohol - form in the hydrazinecarbothioamide. This unique photochromic system is obviously different from that of traditional Schiff bases, such as salicylideneanilines.
引用
收藏
页码：105 / 110
页数：6
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