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A near-IR luminescent ratiometric ytterbium pH probe.

Shuvaev, Sergey and Parker, David (2019) 'A near-IR luminescent ratiometric ytterbium pH probe.', Dalton transactions., 48 (14). pp. 4471-4473.


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.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Date accepted:30 March 2019
Date deposited:26 April 2019
Date of first online publication:30 March 2019
Date first made open access:30 March 2020

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