Indexed by:Journal Article
Date of Publication:2019-10-01
Journal:DYES AND PIGMENTS
Included Journals:EI、SCIE
Volume:169
Page Number:105-110
ISSN:0143-7208
Key Words:Photochromism; Amorphous powder; Nanofiber; Schiff bases; Indole; Intermolecular proton transfer
Abstract: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.
Pre One : Charge separation, charge recombination, long-lived charge transfer state formation and intersystem crossing in organic electron donor/acceptor dyads
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Supervisor of Doctorate Candidates
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Gender:Male
Alma Mater:Jilin University
Degree:Doctoral Degree
School/Department:School of Chemistry Engineering
Discipline:Organic Chemistry. Applied Chemistry. Physical Chemistry (including Chemical Physics)
Business Address:西部校区E座208房间
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