51325-91-8Relevant articles and documents
A luminescence molecular switch via modulation of PET and ICT processes in DCM system
Yang, Jinfeng,Li, Meng,Kang, Lihua,Zhu, Weihong
, p. 607 - 613 (2017)
A novel versatile dicyanomethylene-4H-pyran (DCM) based derivative bearing ferrocenyl group (DCM-N-Fc) is designed as modulator to construct “off-on” logic operation. The optical properties of DCM-N-Fc are characterized by absorption and steady-state fluorescence technique, showing that the fluorescence from DCM chromophore via intramolecular charge transfer (ICT) is strongly quenched by photoinduced electron transfer (PET) process from ferrocene moiety. In contrast with the references (DCM-N and DCM-Fc), the fluorescence of DCM-N-Fc can be triggered by oxidizing ferrocenyl unit either chemically or electrochemically, exhibiting a characteristic emission modulation at around 610 nm with an electrofluorochromic behavior. Furthermore, the free energy and the fluorescence lifetime in the PET path verify the thermodynamic feasibility. Cyclic voltammetry, absorption spectroscopy, time-resolved fluorescence as well as DFT calculation have been used to elaborate the manipulation via both PET and ICT processes.
A fluorescent compound and its use on medicine
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Paragraph 0057-0058, (2017/08/25)
The invention relates to a fluorescent compound with A beta plaque affinity and a composition which contains the derivative, namely the fluorescent compound. The fluorescent compound is as shown in a general formula (I), wherein a substituent group in the general formula (I) is as shown in the specification. The invention also relates to a preparation method of the fluorescent compound and an application of the fluorescent compound in a method for developing A beta plaques.