Indexed by:期刊论文

Date of Publication:2014-03-01

Journal:DYES AND PIGMENTS

Included Journals:SCIE、EI、Scopus

Volume:102

Page Number:1-5

ISSN No.:0143-7208

Key Words:Synthesis; Linear optics properties; Electrochemical; Two-photon absorption; Intramolecular charge transfer; Ladder-conjugated chromophore

Abstract:Three novel ladder-conjugated chromophores indicated as LT1-LT3 were synthesized and characterized. Further studies on linear, nonlinear optics and electrochemical properties demonstrated their photophysical features respectively. Compound LT1 shows good two-photon absorption cross-section (6) up to similar to 1200 GM at 810 nm in tetrahydrofuran, which is attributed to intramolecular charge transfer effect, as supported by density functional theory theoretical calculations. Compound L12 and LT3 show considerable molar extinction coefficients, which are more than 10(5), and higher quantum yields. Structure function relationship is further discussed, suggesting a rational strategy to develop ladder-conjugated small molecules. (C) 2013 Elsevier Ltd. All rights reserved.