Branched charge-transfer chromophores featuring a 4, 5-dicyanoimidazole unit

F Bureš, J Kulhánek, T Mikysek, J Ludvík, J Lokaj

Index: Bures, Filip; Kulhanek, Jiri; Mikysek, Tomas; Ludvik, Jiri; Lokaj, Jan Tetrahedron Letters, 2010 , vol. 51, # 15 p. 2055 - 2058

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Citation Number: 19

Abstract

Six branched and stable push–pull chromophores featuring 4, 5-dicyanoimidazole as an acceptor moiety, an N, N-dimethylamino group as a donor and various π-conjugated linkers are reported. Systematic extension of the π-linker revealed that the optical and electrochemical properties of A–π–D chromophores are mainly affected by the nature of the π-conjugated backbone (length and planarity) as well as by the number of appended ...