Tunable full-color emission of stilbazoles containing a 2-halo-3,4-dicyanopyridine acceptor

Abstract

Synthesis of a series of novel push-pull stilbazole-based chromophores containing strong 2-halocinchomeronic dinitrile acceptor is reported. The photophysical properties of the compounds are described. Strong positive solvatofluorochromism typical for intramolecular...

New 2-pyridone-based donor–acceptor dyes: the effect of the donor group position, type of π-linker and acid–base characteristics of the medium on the photophysical properties

“…The latter was reacted with pyridone 8 using a procedure similar to the (Fluoro)solvatochromism of compound 4 Donor-acceptor molecules showing ICT are quite sensitive to environmental media. 36,37 In this regard, initially, a solvatochromic behavior of compound 4 as an example was studied in nine different solvents (acetonitrile, ethyl acetate, acetic acid, ethanol, pyridine, DMF, DMSO, THF and DCM) (ESI, Table S1, Fig. S1 and S2 †).…”