Triaryl boron-based A-pi-A vs triaryl nitrogen-based D-pi-D quadrupolar compounds for single- and two-photon excited fluorescence.
Three new A-pi-A-type compounds with trivalent boron, protected by two mesityl groups, as electron acceptor have been synthesized and investigated together with their two diphenylamino-ended D-pi-D analogues. These boranes exhibit large two-photon absorption cross sections and high fluorescence quantum yields.
State Key Laboratory of Crystal Materials, Shandong University, 250100 Jinan, P. R. China.
Zhi-Qiang
ZQ
Liu
Qi
Q
Fang
Du-Xia
DX
Cao
Dong
D
Wang
Gui-Bao
GB
Xu