Led by Florida State University in collaboration with the University of Iceland, through transnational access supported by the PANACEA scheme, this publication highlights recent advances in solid-state NMR for mesoporous materials.

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).

 

Find the full article here: https://pubs.acs.org/doi/10.1021/acs.jpclett.4c03254