Columnar mesomorphism of fluorescent board-shaped quinoxalinophenanthrophenazine derivatives with donor–acceptor structure

…, FS Raad, M Ahmida, BR Kaafarani, SH Eichhorn

Index: Chen, Shuai; Raad, Farah S.; Ahmida, Mohamed; Kaafarani, Bilal R.; Eichhorn, S. Holger Organic Letters, 2013 , vol. 15, # 3 p. 558 - 561

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Citation Number: 22

Abstract

Quinoxalino [2′, 3′: 9, 10] phenanthro [4, 5-abc] phenazine (QPP) dyes have been studied as electron acceptor materials, fluorophores, and building blocks for self-organizing organic semiconductors. Condensation of tetraketopyrene with electron-rich diamino- terphenylene and-triphenylene derivatives generates new donor–acceptor QPP derivatives that display columnar mesomorphism over wide ranges of temperature; are fluorescent in ...