Synthesis and photophysical characterization of novel π-conjugated vinyl sulfides

被引:10
|
作者
Bassaco, Mariana M. [1 ]
Moncalves, Matias [1 ]
Rinaldi, Francieli [1 ]
Kaufman, Teodoro S. [2 ]
Silveira, Claudio C. [1 ]
机构
[1] Univ Fed Santa Maria, UFSM, Dept Quim, BR-97105900 Santa Maria, RS, Brazil
[2] CONICET UNR, IQUIR, Inst Quim Rosario, Rosario, Argentina
关键词
Vinyl sulfides; Wittig-Horner reaction; Fluorescence; pi-Conjugated system; MOLECULAR SCALE WIRES; ELECTROLUMINESCENT PROPERTIES; 1,3,5,7-TETRASUBSTITUTED ADAMANTANES; 2-PHOTON ABSORPTION; THIOPHENE OLIGOMERS; EMITTING MATERIALS; FACILE SYNTHESIS; QUANTUM YIELDS; DERIVATIVES; FLUORESCENCE;
D O I
10.1016/j.jphotochem.2014.06.003
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The synthesis and photophysical properties of a series of pi-conjugated vinyl sulfides are described. These compounds exhibited their absorption maxima in the range of 350-366 nm, while the emission spectra displayed peaks in the zone of 421-441 nm; both of them were influenced, although in different degrees, by the extent of the conjugated system. Red-shifted absorption and emission were observed when the pi-conjugation was extended, clearly indicating that the sulfur atom participates as a bridge within these highly conjugated structures. Therefore, this preliminary investigation suggests that vinyl sulfide-based pi-conjugated materials are promising compounds for the development of novel and efficient organic emitters. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 10
页数:10
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