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Title: The anthracen-9-ylmethyloxy unit : an underperforming motif within the fluorescent PET (photoinduced electron transfer) sensing framework
Authors: Magri, David C.
Callan, John F.
De Silva, A. Prasanna
Fox, David B.
McClenaghan, Nathan D.
Samankumara Sandanayake, K. R. A.
Keywords: Energy transfer
Electrodes, Ion selective
Issue Date: 2005
Publisher: Springer Science+Business Media, Inc.
Citation: Magri, D. C., Callan, J. F., de Silva, A. P., Fox, D. B., McClenaghan, N. D., & Sandanayake, K. S. (2005). The anthracen-9-ylmethyloxy unit: an underperforming motif within the fluorescent PET (photoinduced electron transfer) sensing framework. Journal of Fluorescence, 15(5), 769-775.
Abstract: Compound 2, which was designed to act as a fluorescent sensor for calcium according to the PET (Photoinduced Electron Transfer) principle, shows a relatively small Ca2+-induced fluorescence enhancement factor (FE) of 1.8 whereas its close relative 1 is known to display a far higher FE value of 16. Though designed as fluorescent PET sensors for solvent polarity, compounds 5 and 6 also show negligible fluorescence enhancement as their environments are made progressively less polar even though their relatives 3 and 4 show limiting FE values of 53 and 3, respectively. Indeed, 3 and 4 are useful since they are fluorescent sensors for solvent polarity without being affected by Bronsted acidity. The poor sensory performance of 2, 5, and 6 relative to their cousins is attributed to the presence of an oxygen proximal to the 9-position of an anthracene unit, which opens up a CT (charge transfer) channel. Normal PET sensing service is resumed when the offending oxygen is deleted.
Appears in Collections:Scholarly Works - FacSciChe

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