A fluorescent photochromic diarylethene based on naphthalic anhydride with strong solvatochromism. Issue 47 (8th June 2017)

• Record Type: Journal Article
• Authors: Chen, Shangjun; Li, Xin; Song, Liwen
• Is Part Of: RSC advances. Volume 7:Issue 47(2017)
• Page Start: 29854
• Page End: 29859
• Publication Date: 2017-06-08
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra05157c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A diarylethene molecule consisting of an 1, 8-naphthalic anhydride and two 2, 5 dimethylthiophene which exhibits reversible fluorescence switching capacity as well as solvatochromism with red shift of the fluorescence maximum by more than 150 nm. Abstract : A novel "push–pull" diarylethene molecule consisting of an electron withdrawing ethene bridge (1, 8-naphthalic anhydride) and two moderate electron donating side chains (2, 5-dimethylthiophene) has been designed and synthesized. The photochromism study, together with density functional theory calculations, revealed that the molecule exhibits reversible fluorescence switching capacity upon photo-isomerization and remarkable solvatochromism with red shift of the fluorescence maximum by more than 150 nm owing to intramolecular charge transfer.