Ym. Mo et al., PHOTOPHYSICS PROPERTIES OF 4-FORMACYL-TRIPHENYLAMINE AND 4,4'-BISFORMACYL-TRIPHENYLAMINE, Science in China. Series B, Chemistry, life sciences & earth sciences, 39(3), 1996, pp. 255-259
The photophysical processes of 4-formacyl-triphenylamine (FTA) and 4,
4'-bisformacyl-triphenylamine (BTA) haw been studied. The fluorescence
s of FTA and BTA with donor (triamine) and acceptor (formacyl) moietie
s show the twisted intramolecular charge transfer (TICT) emission in p
olar solvents and photoinduced charge transfer (TCT) emission in nonpo
lar solvents. These could be supported by the solvent effect, temperat
ure effect and the quenching process by strong electron-deficient comp
ounds.