SEARCH

SEARCH BY CITATION

Chemistry Terms

Choose one or more boxes to highlight terms.

Keywords:

  • dithienylethene;
  • donor–acceptor systems;
  • fluorescence;
  • photochromism;
  • perylene monoimide;
  • tetraphenylethene

Abstract

Photochromic 1,2-dithienylethene (DTE) derivatives with a high thermal stability and fatigue resistance are appealing for optical switching of fluorescence. Here, we introduce a donor–photochromic bridge–acceptor tetraphenylethene-dithienylethene-perylenemonoimide (TPE-DTE-PMI) triad, in which TPE acts as the electron donor, PMI as the electron acceptor, and DTE as the photochromic bridge. In this system, the localized and intramolecular charge transfer emission of TPE-DTE-PMI with various Stokes shifts have been observed due to the photoinduced intramolecular charge transfer in different solvents. Upon UV irradiation, the fluorescence quenching resulting from photochromic fluorescence resonance energy transfer in TPE-DTE-PMI has been demonstrated in solution and in solid films. The fluorescence on/off switching ratio in polymethylacrylate film exceeds 100, a value much higher than in polymethylmethacrylate film, thus indicating that the fluorescence switching is dependent on matrices.

Featured Compounds

VIEW

  1. 1 - 6
Compound 1O
Molecular Weight:1178.349
Molecular Formula:C75H53F6NO2S2
InChIKey:DLPZBOUGFOJZQC-UHFFFAOYSA-N
View compound in article | Full details | Search for this compound
Compound 2O
Molecular Weight:1052.236
Molecular Formula:C63H55F6NO3S2
InChIKey:NKLGQOWYVSTURX-UHFFFAOYSA-N
View compound in article | Full details | Search for this compound
Compound 3O
Molecular Weight:1327.496
Molecular Formula:C83H60F6N2O4S2
InChIKey:QPHUCIRVVXQPIJ-UHFFFAOYSA-N
View compound in article | Full details | Search for this compound
Compound 2C
Molecular Weight:1052.236
Molecular Formula:C63H55F6NO3S2
InChIKey:ZRMMWZKGXZHULZ-UHFFFAOYSA-N
View compound in article | Full details | Search for this compound
Compound 3C
Molecular Weight:1327.496
Molecular Formula:C83H60F6N2O4S2
InChIKey:RBNKHZRFRQPFIL-UHFFFAOYSA-N
View compound in article | Full details | Search for this compound
Compound 1C
Molecular Weight:1178.349
Molecular Formula:C75H53F6NO2S2
InChIKey:RUSXCJXDSVYPME-UHFFFAOYSA-N
View compound in article | Full details | Search for this compound

VIEW

  1. 1 - 6