A 13C‐Labeled Triarylmethyl Radical as an EPR Spin Probe Highly Sensitive to Molecular Tumbling
- 20 July 2020
- journal article
- research article
- Published by Wiley in Angewandte Chemie-International Edition
- Vol. 59 (38), 16451-16454
- https://doi.org/10.1002/anie.202006591
Abstract
A stable triarylmethyl spin probe whose electron paramagnetic resonance (EPR) spectrum is highly sensitive to molecular tumbling is reported. The strong anisotropy of the hyperfine coupling tensor with the central carbon of a 13C1‐labeled triarylmethyl radical enables the measurement of the probe rotational correlation time with applications to measure microviscosity and molecular dynamics.Keywords
Funding Information
- National Institute of Biomedical Imaging and Bioengineering (EB023990)
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