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Short Paper | Regular issue | Vol 94, No. 12, 2017, pp.2291-2298
Published online, 20th November, 2017
DOI: 10.3987/COM-17-13818
Synthesis and Two-Photon Absorption Properties of Two Long Conjugated Asymmetric Carbazole Derivatives

Xiao-nan Liu, Wen-jie Cui, Wei-ju Zhu,* Heng Zhang, Xue Tian, Cun Li, Zhen-yu Wu, and Min Fang*

*School of Chemistry and Chemical Engineering, Anhui University and Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Hefei 230601, China

Abstract

Two long π conjugated asymmetric carbazole derivatives, 3-benzothiazolyl-6-(4-(4-methoxystyryl)-styryl)-9-butylcarbazole (M1) and 3-(4-(4-methoxystyryl)styryl)-9-butylcarbazole (M2), were synthesized and characterized by FT-IR, 1H NMR and elemental analyses. Their linear photophysical and two-photon absorption (TPA) properties were investigated by UV-vis absorption, fluorescence emission spectra and the two-photon excited fluorescence (TPEF) measurements in DMF, respectively. The results show that both compounds have strong fluorescence emission and the fluorescence quantum yield (Φ) of M2 (0.36) is higher than M1 (0.25), M1 exhibits larger TPA cross-section (1538 GM) than M2 (564 GM) in the femtosecond regime, indicating their potential applications as excellent optoelectronic material in optical field.