Red and Near-Infrared Photoluminescence of D-π-A-Type Compounds Based on a 1,4-Diaryl-1-thio-1,3-butadiene Conjugated System in a Dibenzobarrelene Skeleton
摘要:
1,4-Diaryl-1-thio-1,3-butadiene derivatives having a pi-donor dimethylamino group and several pi-acceptor substituents at both terminals of the conjugated system were synthesized by intramolecular [4 + 2] cycloaddition of 1-thio-enynes and subsequent chemical transformations. They displayed largely red-shifted absorption and emission spectra in solution, the powder state, and in polymer films. The derivatives with a 2,2-dicyanoethenyl group as the p-acceptor exhibited inverted solvatochromism in both optical absorption and fluorescence spectroscopies.
Red and Near-Infrared Photoluminescence of D-π-A-Type Compounds Based on a 1,4-Diaryl-1-thio-1,3-butadiene Conjugated System in a Dibenzobarrelene Skeleton
摘要:
1,4-Diaryl-1-thio-1,3-butadiene derivatives having a pi-donor dimethylamino group and several pi-acceptor substituents at both terminals of the conjugated system were synthesized by intramolecular [4 + 2] cycloaddition of 1-thio-enynes and subsequent chemical transformations. They displayed largely red-shifted absorption and emission spectra in solution, the powder state, and in polymer films. The derivatives with a 2,2-dicyanoethenyl group as the p-acceptor exhibited inverted solvatochromism in both optical absorption and fluorescence spectroscopies.
Novel diacetylenic and polydiacetylenic compositions
申请人:Hoechst Celanese Corporation
公开号:US04720567A1
公开(公告)日:1988-01-19
This invention provides a novel class of diacetylenic monomers and corresponding polydiacetylenic polymers. Illustrative of the invention is a polymer characterized by the repeating unit: ##STR1## In the form of an optically transparent medium with a noncentrosymmetric alignment of molecules, the polymer exhibits exceptional second order nonlinear optical susceptibility effects.
Red and Near-Infrared Photoluminescence of D-π-A-Type Compounds Based on a 1,4-Diaryl-1-thio-1,3-butadiene Conjugated System in a Dibenzobarrelene Skeleton
作者:Akihiko Ishii、Yukihiro Makishima、Norio Nakata
DOI:10.1021/acs.joc.5b02189
日期:2015.11.20
1,4-Diaryl-1-thio-1,3-butadiene derivatives having a pi-donor dimethylamino group and several pi-acceptor substituents at both terminals of the conjugated system were synthesized by intramolecular [4 + 2] cycloaddition of 1-thio-enynes and subsequent chemical transformations. They displayed largely red-shifted absorption and emission spectra in solution, the powder state, and in polymer films. The derivatives with a 2,2-dicyanoethenyl group as the p-acceptor exhibited inverted solvatochromism in both optical absorption and fluorescence spectroscopies.