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作 者:Fang Gao Nv Dan Hu Hong Ru Li Sheng Tao Zhang
机构地区:[1]College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
出 处:《Chinese Chemical Letters》2009年第11期1279-1282,共4页中国化学快报(英文版)
基 金:support from National Natural Science Foundation of China(Nos. 20776165,20702065,20872184);"Key Foundation of Chongqing Science and Technology Commission"(No.CSTC 2008BA4020);"A Foundation for the Author of National Excellent Doctoral Dissertation of PR China(No.200735)"for financial support;sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry as well(Nos.20071108- 1,20071108-5)
摘 要:New two-photon absorption dyes including benzophenone parts, p-N,N-diphenylamino-p'-phenacylstilbene (C1), 4,4-di-(4- benzoylstyrene)yltriphenylamine (C2) and 4,4',4'-tri(4-benzoylstyrene)yltriphenylamine (C3), were synthesized and characterized by ^1H NMR and elemental analysis. The ratio of the molar extinction coefficients of compounds was approximately equal to the ratio of the branch amount of the compounds, namely, C1:C2:C3 was 1:2:3. Extremely high fluorescence quantum yields were detected for these compounds. These molecules exhibited obvious two-photon upconcerted fluorescence as excited by 800 nm Ti:sapphire femtosecond laser.New two-photon absorption dyes including benzophenone parts, p-N,N-diphenylamino-p'-phenacylstilbene (C1), 4,4-di-(4- benzoylstyrene)yltriphenylamine (C2) and 4,4',4'-tri(4-benzoylstyrene)yltriphenylamine (C3), were synthesized and characterized by ^1H NMR and elemental analysis. The ratio of the molar extinction coefficients of compounds was approximately equal to the ratio of the branch amount of the compounds, namely, C1:C2:C3 was 1:2:3. Extremely high fluorescence quantum yields were detected for these compounds. These molecules exhibited obvious two-photon upconcerted fluorescence as excited by 800 nm Ti:sapphire femtosecond laser.
关 键 词:Synthesis SPECTROSCOPY Two-photon absorption BENZOPHENONE
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