Synthesis and characterization of γ-lactone-Pechmann dye based donor-acceptor conjugated polymers
作者:Amsalu Efrem、Marc Courté、Kai Wang、Denis Fichou、Mingfeng Wang
DOI:10.1016/j.dyepig.2016.07.013
日期:2016.11
acceptor moiety, γ-lactone-Pechmann dye is synthesized and used in the construction of two new conjugated D-A polymers. The optical and electrochemical characterization shows a broad absorption band extended to 1000 nm and narrowbandgaps with deep LUMO energy levels. The chemical structures of the sidechains appended from the donor units affect the intermolecular aggregation and the charge transport
作者:Tyler B. Norsten、Eric Assen B. Kantchev、Michael B. Sullivan
DOI:10.1021/ol1019772
日期:2010.11.5
Thiophene-containing Pechmanndyes (unsaturated exo-5,5-dilactones) were easily prepared by Cu-catalyzed dehydration of the corresponding β-aroylacrylic acids. Introduction of long alkyl chains greatly enhances solubility. Isomerization of an alkyl-substituted thiophene Pechmanndye (TPD) gave the corresponding endo-6,6-dilactone. The redox and electronic properties of these new dyes were investigated