A novel fluorescence enhancing F - probe based on intermolecular energy transfer

Quanguo WANG,Yubin DING,Weihong ZHU,Yongshu XIE,

PDF(259 KB)
PDF(259 KB)
Front. Chem. China ›› 2010, Vol. 5 ›› Issue (2) : 162-165. DOI: 10.1007/s11458-010-0105-9
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A novel fluorescence enhancing F - probe based on intermolecular energy transfer

  • Quanguo WANG,Yubin DING,Weihong ZHU,Yongshu XIE,
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Abstract

A supramolecular fluorescent sensor of F− based on intermolecular energy transfer is described. The maximum absorption wavelength of a pyrrolic compound 1 is 472 nm, which is coincident with the emission wavelength of a dipyridylamine-anthracene compound 2. In the CH2Cl2 solution of 1 and 2, the fluorescence of 2 was quenched because of the presence of intermolecular energy transfer from 2 to 1. When F− was added to this solution, the absorption maximum wavelength of 1 shifted from 472 to 594 nm due to a deprotonation process. Simultaneously, the fluorescence of 2 was recovered because of the interruption of the intermolecular energy transfer. Based on these observations, the combination of 1 and 2 can be regarded as a novel supramolecular fluorescence enhancing F− probe.

Keywords

fluoride sensor / intermolecular energy transfer / fluorescence enhancement

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Quanguo WANG, Yubin DING, Weihong ZHU, Yongshu XIE,. A novel fluorescence enhancing F - probe based on intermolecular energy transfer. Front. Chem. China, 2010, 5(2): 162‒165 https://doi.org/10.1007/s11458-010-0105-9
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