Phenyl selenoxide functionalized TPA/TPE π-conjugated imidazo[1,2-<i>a</i>]pyridine: a fluorescent probe for the selective detection of water in organic solvents.

ABSTRACT: Phenyl selenoxide functionalized tetraphenylethylene (TPE) and triphenylamine (TPA) electron donors π-conjugated with the imidazo[1,2-a]pyridine acceptor, namely, N,N-diphenyl-4-(3-(phenylseleninyl)imidazo[1,2-a]pyridin-2-yl)aniline (SeO-TPA) and 3-(phenylseleninyl)-2-(4-(1,2,2-triphenylvinyl)phenyl) imidazo[1,2-a]pyridine (SeO-TPE), were synthesized, and the effect of TPA/TPE on their photophysical properties was explored. SeO-TPA showed emission in both solution and solid states, while SeO-TPE exhibited emission only in the solid state. SeO-TPA also exhibited solvent polarity-dependent emission due to a hydrophilic Se[double bond, length as m-dash]O group. Interestingly, the selenoxide of SeO-TPA reacted with a trace amount of water present in the organ

SUBMITTER: Issac J 

PROVIDER: S-EPMC12608064 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature