Two novel π-conjugated carbazole derivatives with blue two-photon-excited fluorescence

Zhang Jun Hu, Ping Ping Sun, Lin Li, Yu Peng Tian, Jia Xiang Yang, Jie Ying Wu, Hong Ping Zhou, Li Ming Tao, Chuan Kui Wang, Ming Li, Guang Hua Cheng, Huo Hong Tang, Xu Tang Tao, Min Hua Jiang

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Two novel asymmetric D-π-D′ type chromophores with blue two-photon-excited fluorescences, (E)-3-(4-(methylthio)styryl)-9-ethyl-carbazole (T1) and (E)-3-(4-(methylthio)styryl)-9-hexyl-carbazole (T2), were synthesized via a solvent-free Wittig-Horner reaction. All of the compounds obtained were fully characterized by IR, MS and NMR spectroscopies. The structure of T1 was determined by single crystal X-ray diffraction analysis. A mechanism for the formation of the target molecules is also presented. Linear and nonlinear optical properties of T1 and T2 were investigated both experimentally and theoretically. The results show that the two asymmetric D-π-D′ type dyes exhibit clear two-photon activities with efficient blue emissions. Finally, pilot studies based on nonlinear optical applications of the synthesized chromophores were also carried out.

Original languageEnglish
Pages (from-to)91-98
Number of pages8
JournalChemical Physics
Volume355
Issue number2-3
DOIs
StatePublished - 27 Jan 2009
Externally publishedYes

Keywords

  • Alkylate
  • Blue fluorescence
  • Carbazole
  • Two-photon-excited fluorescence

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