期刊
COMPTES RENDUS CHIMIE
卷 13, 期 8-9, 页码 1082-1090出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crci.2010.04.021
关键词
Phosphorus; Fused-ring systems; Cyclization; Conjugation; Chromophores; Fluorescence
资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [17069011, 19675001, 20750029]
- Grants-in-Aid for Scientific Research [17069011, 20750029] Funding Source: KAKEN
The PCl3-promoted intramolecular cascade cyclization produced a series of thiophene-fused phospholo[3,2-b]phosphole derivatives, including non-oxidized 2, dioxides 3, and disulfides 4. These derivatives exhibit significantly red-shifted absorptions and fluorescences compared with their benzene-fused analogues. Among the thiophene-fused series, the non-oxidized 2 has the highest fluorescence quantum yield of 0.95. This trend is in contrast to that observed for the benzene analogues, in which a dioxide derivative shows the most intense fluorescence. (C) 2010 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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