Issue 5, 2013

Synthesis and efficient solid-state emission of conjugated donor–acceptor–donor triphenylaminechromophores

Abstract

Two symmetrical donor–acceptor–donor chromophores built by connecting two triphenylamine donors to a central electron acceptor 2,5-diphenyl-1,3,4-oxadiazole or anthracene core have been synthesized and characterized. The aggregation-induced emission phenomenon of these compounds with bright and deep emission from orange to green in the solid state can be obsreved. The chromophores based on the triphenylamine unit exhibit efficient solid-state emission. The results indicate that D–A–D conjugation bridging provides a new opportunity for AIE-materials. The multiphoton induced fluorescence spectra of these chromophores were measured using a femtosecond Ti:sapphire. The three-photon excited fluorescence spectra are in the green region with peaks at 554 nm for An-BIPAS and 504 nm for Ox-BIASP in THF, respectively. These AIE-active compounds are potential materials to design sensitive and selective fluorescent sensors or bioprobes.

Graphical abstract: Synthesis and efficient solid-state emission of conjugated donor–acceptor–donor triphenylamine chromophores

Article information

Article type
Paper
Submitted
18 Oct 2012
Accepted
14 Feb 2013
First published
18 Feb 2013

New J. Chem., 2013,37, 1402-1407

Synthesis and efficient solid-state emission of conjugated donor–acceptor–donor triphenylamine chromophores

B. Wang and Y. Qian, New J. Chem., 2013, 37, 1402 DOI: 10.1039/C3NJ41115J

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