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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2008, Vol. 9 Issue (11): 1590-1594    DOI: 10.1631/jzus.A0820176
Environmental & Chemical Engineering     
Switchable 2,3-dithienylmaleimide bonded to different fluorophores: synthesis and photochromic properties
Lei XU, Zu-jin ZHAO, Ya-jun XING, Ping LU
Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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Abstract  A series of photochromic diarylethene derivatives containing different fluorophores was synthesized by the Sonogashira coupling reaction and characterized by 1H nuclear magnetic resonance (NMR), 13C NMR and mass spectroscopy. Photochromic conversion of Cz-MS was observed and its structural change was confirmed by proton NMR. Switchable absorption and emission phenomena were observed for these molecules. These phenomena were attributed to the reversible photochromic fluorescence resonance energy transfer (pcFRET) process. The design of this novel photochromic system of Py-4MS enables information to be processed in a non-destructive manner. This overcomes the problem of the destructive nature of tracking photochromism using ultraviolet (UV)-vis spectroscopy.

Key words： Photochromic reaction      Diarylethene derivatives      Photochromic fluorescence resonance energy transfer (pcFRET)     
Received: 11 March 2008     
CLC:  O62  
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Lei XU
Zu-jin ZHAO
Ya-jun XING
Ping LU
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Lei XU, Zu-jin ZHAO, Ya-jun XING, Ping LU. Switchable 2,3-dithienylmaleimide bonded to different fluorophores: synthesis and photochromic properties. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(11): 1590-1594.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820176     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2008/V9/I11/1590

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