AIE and reversible mechanofluorochromism characteristics of new imidazole-based donor-π-acceptor dyes.

ABSTRACT: Four new imidazole-based donor-π-acceptor 2a-2d dyes have been synthesized, and their solvatochromism, aggregation-induced emission (AIE) and mechanofluorochromic (MFC) properties were investigated. The new dyes 2a-2d were designed to have 1,4,5-triphenyl-1H-imidazole as an electron donor (D) and 1-indanone, 1,3-indandione, 2-phenylacetonitrile and 2-thiopheneacetonitrile as electron acceptors (A) linked through a phenyl bridge. The maximum absorption wavelength of 2a-2d dyes in DCM solution appeared at 376, 437, 368, and 375 nm, respectively. The dyes exhibit a high molar extinction coefficient (ε) and large Stokes shift, making them useful in optoelectronic applications. Solvatochromic properties of dyes 2a-2d have been studied and showed bathochromic changes in emission wa

SUBMITTER: Al Sharif OF 

PROVIDER: S-EPMC9248369 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature