Indirect Detection of the Protons in and around Biradicals and their Mechanistic Role in MAS-DNP
Year: 2025
Type: article
Abstract: The contribution of protons in or near biradical polarizing agents in Dynamic Nuclear Polarization (DNP) has recently been under scrutiny. Results from selective deuteration and simulations have previously suggested that the role of protons in the biradical molecule depends on the strength of the electron–electron coupling. Here we use the cross effect DNP mechanism to identify and acquire 1H solid-state NMR spectra of the protons that contribute to propagation of the hyperpolarization, via an experimental approach dubbed Nuclear–Nuclear Double Resonance (NUDOR).
Authors: Satyaki Chatterjee, Faith J. Scott, Snorri Th. Sigurdsson, Amrit Venkatesh, Frédéric Mentink-Vigier
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Funders: National Science Foundation, Florida State University, National High Magnetic Field Laboratory, European Commission, Háskóli Íslands, National Institutes of Health, Horizon 2020, National Institute of General Medical Sciences, Division of Materials Research, High Magnetic Field Laboratory, Chinese Academy of Sciences, State of Florida
OpenAlex ID: W4406221574