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Issue 14, 2019
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A near-IR luminescent ratiometric ytterbium pH probe

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Abstract

The hypersensitive 2F5/2 to 2F7/2 transition of Yb3+ can be used to monitor perturbations of the coordination sphere in ytterbium(III) complexes. An envelope of Stark components gives rise to a relatively broad and asymmetric emission band, whilst changes in their relative intensity and energy enable a ratiometric response. We report a new ytterbium complex with a sulphonamide arm that binds reversibly to Yb3+ as a function of pH, giving rise to significant pH dependent changes in the Yb emission spectrum.

Graphical abstract: A near-IR luminescent ratiometric ytterbium pH probe

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Publication details

The article was received on 29 Jan 2019, accepted on 05 Mar 2019 and first published on 06 Mar 2019


Article type: Communication
DOI: 10.1039/C9DT00411D
Citation: Dalton Trans., 2019,48, 4471-4473

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    A near-IR luminescent ratiometric ytterbium pH probe

    S. Shuvaev and D. Parker, Dalton Trans., 2019, 48, 4471
    DOI: 10.1039/C9DT00411D

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