Publication details for Prof. David ParkerShuvaev, Sergey & Parker, David (2019). A near-IR luminescent ratiometric ytterbium pH probe. Dalton Transactions 48(14): 4471-4473.
- Publication type: Journal Article
- ISSN/ISBN: 1477-9226 (print), 1477-9234 (electronic)
- DOI: 10.1039/C9DT00411D
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
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.