Structure-property investigations of substituted triarylamines and their applications as fluorescent pH sensors

Binbin Hu; Xiaopeng Chen; Yifei Wang; Ping Lu; Yanguang Wang

doi:10.1002/asia.201300028

Structure-property investigations of substituted triarylamines and their applications as fluorescent pH sensors

Chem Asian J. 2013 Jun;8(6):1144-51. doi: 10.1002/asia.201300028. Epub 2013 Apr 5.

Authors

Binbin Hu¹, Xiaopeng Chen, Yifei Wang, Ping Lu, Yanguang Wang

Affiliation

¹ Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China.

PMID: 23564651
DOI: 10.1002/asia.201300028

Abstract

Fourteen triphenylamine derivatives functionalized with fluorophenyl, methoxyphenyl, and pyridinyl groups as respective donors and acceptors were synthesized and characterized. Their photophysical properties were systematically investigated in various solvents with different polarities. The solvent-dependent Stokes shifts of these compounds were observed and analyzed by the Lippert-Mataga equation. The synthesized compounds, especially tris(4-(pyridin-4-yl)phenyl) amine, presented pH-dependent absorptions and emissions, indicating that these compounds might be used as pH sensors.