Facile synthesis and characterization of new polymerizable conjugated 2,5-di(selenophen-2-yl)pyrroles and 2,5-difuranylpyrroles
摘要:
A facile synthesis of novel pi-conjugated 2,5-di(selenophen-2-yl)pyrroles (SeNSe) and 2,5-difuranylpyrroles (ONO) via Paal-Knorr reaction as the key step is presented. Photophysical and electrochemical studies of the various products have been explored. A bathochromic shift of the emission maximum is observed for all SeNSes over ONOs. Extended conjugation with a phenyl moiety further promotes the bathochromic shift. These SeNSe and ONO derivatives exhibit lower oxidation potentials than their terselenophene and terthiophene analogues. (C) 2010 Elsevier Ltd. All rights reserved.
Facile synthesis and characterization of new polymerizable conjugated 2,5-di(selenophen-2-yl)pyrroles and 2,5-difuranylpyrroles
作者:Pitchamuthu Amaladass、Kalyan Kumar Pasunooti、Zihuan Png、Xue-Wei Liu
DOI:10.1016/j.tetlet.2010.12.019
日期:2011.2
A facile synthesis of novel pi-conjugated 2,5-di(selenophen-2-yl)pyrroles (SeNSe) and 2,5-difuranylpyrroles (ONO) via Paal-Knorr reaction as the key step is presented. Photophysical and electrochemical studies of the various products have been explored. A bathochromic shift of the emission maximum is observed for all SeNSes over ONOs. Extended conjugation with a phenyl moiety further promotes the bathochromic shift. These SeNSe and ONO derivatives exhibit lower oxidation potentials than their terselenophene and terthiophene analogues. (C) 2010 Elsevier Ltd. All rights reserved.