Li, Ziyong published the artcileBlue-/NIR light-excited fluorescence switch based on a carbazole-dithienylethene-BF2bdk triad, Synthetic Route of 219537-97-0, the publication is Journal of Organic Chemistry (2019), 84(21), 13364-13373, database is CAplus and MEDLINE.
The development of novel solid-state fluorescence switches, particularly triggered by visible light, is of increasing interest for the potential application in optical data storage and super-resolution fluorescence microscopies. In this study, two carbazole-dithienylethene-BF2bdk triads CDB1 and CDB2, suspending carbazole and BF2bdk moieties on both sides of dithienylethene unit, have been developed. They exhibit blue-/NIR light-controlled photochromism with solvent-dependent characteristics. Moreover, CDB1 (o) reveals blue-/NIR light-induced reversible fluorescent switching behaviors in toluene, chloroform, poly(Me methacrylate) (PMMA) film, and powder state, while its analog CDB2 (o) in the powder state exhibits no fluorescence due to a strong intermol. π-π stacking interaction, and the fluorescent switching performance is observed only in toluene and PMMA film. The d. functional theory calculations further validate the differences in their optical properties in the solution and powder states.
Journal of Organic Chemistry published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Synthetic Route of 219537-97-0.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics