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Synthesis, spectroscopic, and electrochemical properties of two dyads consisted of tetrathiafulvalene and carbazole
Received date: 14 Nov 2008
Accepted date: 05 Jan 2009
Published date: 05 Jun 2009
Copyright
Two donor-σ-acceptor molecules containing tetrathiafulvalene (TTF) and carbazole moieties were synthesized by the reaction of 9-(4-bromo-butyl)-carbazole (1) with 2,6-bis(hexylthio)-3-(2-cyanoethylthio)-7-(methylthio)-tetrathiafulvalene (2) or 2,6-bis(2-cyanoethylthio)-3,7-bis(methylthio)tetrathiafulvalene (3) in the presence of CsOH·H2O, respectively. The structures of the molecules were characterized by 1H NMR, 13C NMR, MS, and elemental analyses. They showed negligible intramolecular charge-transfer interaction in their ground states as indicated by their UV-Vis spectroscopics and cyclic voltammetry results. Compared with carbazole, their fluorescence was strongly quenched, which implied that a photo induced electron transfer (PET) interaction between TTF and carbazole moieties occurred.
Guoqiao LAI , Yibo LIU , Meijiang LI , Yongjia SHEN . Synthesis, spectroscopic, and electrochemical properties of two dyads consisted of tetrathiafulvalene and carbazole[J]. Frontiers of Chemical Science and Engineering, 2009 , 3(2) : 192 -195 . DOI: 10.1007/s11705-009-0015-x
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