Triaryl boron-based A-π-A vs triaryl nitrogen-based D-π-D quadrupolar compounds for single-and two-photon excited fluorescence

ZQ Liu, Q Fang, DX Cao, D Wang, GB Xu

Index: Liu, Zhi-Qiang; Fang, Qi; Cao, Du-Xia; Wang, Dong; Xu, Gui-Bao Organic Letters, 2004 , vol. 6, # 17 p. 2933 - 2936

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Citation Number: 140

Abstract

Three new A-π-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-π-D analogues. These boranes exhibit large two-photon absorption cross sections and high fluorescence quantum yields.