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Branched charge-transfer chromophores featuring a 4,5-dicyanoimidazole unit |
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| Authors: | Filip Bureš Ji?í Kulhánek Ji?í Ludvík |
| Institution: | a Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10, Czech Republic b Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10, Czech Republic c J. Heyrovský Institute of Physical Chemistry, Academy of Science of the Czech Republic, Dolejškova 3, Prague 8, 182 23, Czech Republic d Faculty of Food and Chemical Technology, Slovak University of Technology, Radlinskeho 9,812 37 Bratislava and Faculty of Material Science and Technology, Slovak University of Technology, Paulinská 19, Trnava 917 24, Slovakia |
| 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 donors. |
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