Highly fluorescent intramolecular dimmers of two pyrenyl-substituted fluorenes bridged by 1, 6-hexanyl: synthesis, spectroscopic, and self-organized properties

C He, Q He, Q Chen, L Shi, H Cao, J Cheng, C Deng…

Index: He, Chao; He, Qingguo; Chen, Qing; Shi, Liqi; Cao, Huimin; Cheng, Jiangong; Deng, Changmin; Lin, Tong Tetrahedron Letters, 2010 , vol. 51, # 9 p. 1317 - 1321

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Citation Number: 13

Abstract

Two intramolecular dimmers of 4-, 8-pyrenyl-substituted fluorenes bridged by 1, 6-hexanyl unit have been synthesized. They showed very strong fluorescent emission with the emission peak at around 450nm and fluorescence efficiency as high as∼ 0.9. The absorption spectra also had high extinction coefficients. The cyclic voltammetric curves showed that they can be used as electron-donating materials. The DSC results suggested ...