Blue-red emitting materials based on a pyrido[2,3-b]pyrazine backbone: design and tuning of the photophysical, aggregation-induced emission, electrochemical and theoretical properties.

ABSTRACT: Pyrido[2,3-b]pyrazine-based donor-acceptor-donor (D-A-D) molecules were designed by altering donor amines and synthesized using the Buchwald-Hartwig C-N coupling reaction. Further, the tunable opto-electrochemical properties of the dyes were studied in detail. The dye possesses intramolecular charge transfer (ICT) transition (412-485 nm), which marked the D-A architecture and induces a broad range of emissions from blue to red (486-624 nm) in the solution and solid state. Some of the dyes show aggregation-induced emission (AIE) features and formation of nanoparticles in the THF/H₂O mixture, as confirmed by DLS and FEG-SEM (of 7) analysis. The AIE characteristics indicate its solid/aggregate-state application in organic electronics. The molecules exhibit high thermal stabi

SUBMITTER: Kapse DM 

PROVIDER: S-EPMC8981966 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature