Optical Activity of Heteroaromatic Conjugated Polymer Films Prepared by Asymmetric Electrochemical Polymerization in Cholesteric Liquid Crystals: Structural Function for Chiral Induction
We electrochemically polymerized various achiral heteroaromatic monomers in left-handed helical cholesteric liquid crystal (CLC) media. Circular dichroism (CD) spectroscopy revealed that most of the resulting conjugated polymer films exhibited both the first negative and second positive Cotton effects near their absorption maxima. This indicates left-handed helical aggregation of the conjugated main
POLYMERS OF 8,9-DIHYDROBENZO[DEF]CARBAZOLE AND THEIR USE AS ORGANIC SEMICONDUCTORS
申请人:Blouin Nicolas
公开号:US20130001476A1
公开(公告)日:2013-01-03
The invention relates to novel polymers containing 8,9-dihydrobenzo[def]carbazole units, methods and materials for their preparation, their use as semiconductors in organic electronic (OE) devices, and to OE devices comprising these polymers.
Reactivity of bromofluorenes in palladium-catalysed direct arylation of heteroaromatics
作者:Imen Smari、Liqin Zhao、Kedong Yuan、Hamed Ben Ammar、Henri Doucet
DOI:10.1039/c4cy00771a
日期:——
The palladium-catalysed direct arylation using 2-bromofluorene or 2,7-dibromofluorene and heteroaromatics as the coupling partners proceeded using only 0.1–0.5 mol% catalyst.
[EN] POLYMERS OF BENZODITHIOPHENE AND THEIR USE AS ORGANIC SEMICONDUCTORS<br/>[FR] POLYMÈRES DE BENZODITHIOPHÈNE ET LEUR UTILISATION COMME SEMI-CONDUCTEURS
申请人:MERCK PATENT GMBH
公开号:WO2011131280A1
公开(公告)日:2011-10-27
the invention relates to novel polymers of benzodithiophene, methods and materials for their preparation, their use as semiconductors in organic electronic (OE) devices, and to OE devices comprising these polymers.