Design and Investigation of a Series of Rhodamine-Based Fluorescent Probes for Optical Measurements of pH
Organic Letters2010Vol. 12(14), pp. 3219–3221
Citations Over TimeTop 10% of 2010 papers
Abstract
A series of structurally similar fluorescent probes (1-4), synthesized from rhodamine B, were designed to optically measure pH. Each probe had a unique "off-on" response as the solution went from basic to acidic. Probes 1-3 exhibited a spirocyclic quenching of the pyronin B fluorophore, whereas probe 4 was quenched by PET from the amine moiety.
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