Abstract
Recently, much attention has been paid to the functionalization at the 1,8-positions of carbazole in order to explore novel carbazole-based conjugated systems. We envisaged that carbazole derivatives incorporated with aromatic groups at 1,8-positions could serve as molecular receptors. In this strategy, we designed and synthesized novel carbazole derivatives, in which anthracene or pyrene as aromatic groups is introduced at 1,8-positions of carbazole via single or triple bond, and investigated their complexation behavior with various acceptors. The 1H NMR chemical shifts of the carbazoles after addition of acceptors in CDCl3 clearly revealed the complex formation in the optimum space constructed by two aromatic groups at 1,8-positions of carbazoles.
