Blue two-photon excited fluorescence of several D-π-D, A-π-A, and D-π-A compounds featuring dimesitylboryl acceptor

被引:63
作者
Cao, DX [1 ]
Liu, ZQ [1 ]
Fang, Q [1 ]
Xu, GB [1 ]
Xue, G [1 ]
Liu, GQ [1 ]
Yu, WT [1 ]
机构
[1] Shandong Univ, State Key Lab Crystals Mat, Jinan 250100, Peoples R China
基金
中国国家自然科学基金;
关键词
dimesitylboryl; two-photon excited fluorescence; X-ray structure;
D O I
10.1016/j.jorganchem.2004.04.006
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Several donor-pi-donor (D-pi-D), acceptor-pi-acceptor (A-pi-A), and donor-pi-acceptor (D-pi-A) types of organic compounds with fluorene as pi bridge and dimesitylboryl group as electron acceptor, which show strong two-photon excited blue fluorescence, have been synthesized and structurally investigated. The symmetric A-pi-A type of compound exhibits the shortest wavelength of two-photon excited fluorescence (TPEF) at lambda(em) = 405 nm under the excitation of lambda(ex) = 730 nm; the unsymmetric D-pi-A type of compound with diphenylamino as donor exhibits the most intense TPEF at blue region (lambda(em) = 484 nm) with a two-photon absorption cross-section of 425 GM under lambda(ex) = 800 nm. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:2201 / 2206
页数:6
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