Synthesis and properties of tribranched chromophores with triazine and fluorene units |
| |
| Authors: | Li Liua Zhi Qiang Zhoub Jie Ping Shia Chang Gui Lub Yi Ping Cuib Guo Yuan Lua a |
| |
| Institution: | a Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China;b Advanced Photonics Center, Southeast University, Nanjing 210096, China |
| |
| Abstract: | Two tribranched chromophores,1,3,5-triazine as electron deficient core,9,9-dimethylfluorene asπ-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 nm 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. |
| |
| Keywords: | Octupolar molecules Buchwald-Hartwig cross-coupling Photophysical properties TPA cross-section |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国化学快报》浏览原始摘要信息 |
| 点击此处可从《中国化学快报》下载免费的PDF全文 |
|
