引用本文:
Li Liu, Zhi Qiang Zhou, Jie Ping Shi, Chang Gui Lu, Yi Ping Cui, Guo Yuan Lu. Synthesis and properties of tribranched chromophores with triazine and fluorene units[J]. Chinese Chemical Letters,
2011, 22(10): 1147-1150.
doi:
10.1016/j.cclet.2011.05.045
Citation: Li Liu, Zhi Qiang Zhou, Jie Ping Shi, Chang Gui Lu, Yi Ping Cui, Guo Yuan Lu. Synthesis and properties of tribranched chromophores with triazine and fluorene units[J]. Chinese Chemical Letters, 2011, 22(10): 1147-1150. doi: 10.1016/j.cclet.2011.05.045
Citation: Li Liu, Zhi Qiang Zhou, Jie Ping Shi, Chang Gui Lu, Yi Ping Cui, Guo Yuan Lu. Synthesis and properties of tribranched chromophores with triazine and fluorene units[J]. Chinese Chemical Letters, 2011, 22(10): 1147-1150. doi: 10.1016/j.cclet.2011.05.045
Synthesis and properties of tribranched chromophores with triazine and fluorene units
摘要:
Two tribranched chromophores, 1, 3, 5-triazine as electron deficient core, 9, 9-dimethylfluorene as π-conjugated bridge, diphenylamino (4a) and naphthylamino (4b) as electron-donating end-groups, were successfully prepared via Buchwald-Hartwig coupling reaction. Their linear photophysical and two-photon absorption (TPA) properties were investigated by absorption, fluorescence and nonlinear transmission method, respectively. The absorption cut-offs of the chromophores are below 550 run and both chromophores have strong fluorescence emission. The compound 4a (206.3 GM) exhibits larger TPA cross-section than 4b (57.8 GM) in the femtosecond regime at 800 nm.
English
Synthesis and properties of tribranched chromophores with triazine and fluorene units
Abstract:
Two tribranched chromophores, 1, 3, 5-triazine as electron deficient core, 9, 9-dimethylfluorene as π-conjugated bridge, diphenylamino (4a) and naphthylamino (4b) as electron-donating end-groups, were successfully prepared via Buchwald-Hartwig coupling reaction. Their linear photophysical and two-photon absorption (TPA) properties were investigated by absorption, fluorescence and nonlinear transmission method, respectively. The absorption cut-offs of the chromophores are below 550 run and both chromophores have strong fluorescence emission. The compound 4a (206.3 GM) exhibits larger TPA cross-section than 4b (57.8 GM) in the femtosecond regime at 800 nm.
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