Concept
Spectroscopie RMN en deux dimensions
Publications associées (32)
Ru(II)-Arene Complexes of Curcumin and Bisdesmethoxycurcumin Metabolites
Paul Joseph Dyson, Farzaneh Fadaei Tirani, Mouna Hadiji
Curcuminoids and their complexes continue to attract attention in medicinal chemistry, but little attention has been given to their metabolic derivatives. Here, the first examples of (arene)Ru(II) complexes with curcuminoid metabolites, tetrahydrocurcumin ...
Amer Chemical Soc2024Quantification of Native Lignin Structural Features with Gel-Phase 2D-HSQC0 Reveals Lignin Structural Changes During Extraction
Jeremy Luterbacher, Stefania Bertella
Our ability to study and valorize the lignin fraction of biomass is hampered by the fundamental and still unmet challenge of precisely quantifying native lignin's structural features. Here, we developed a rapid elevated-temperature H-1-C-13 Heteronuclear S ...
Wiley-V C H Verlag Gmbh2024Optimal sensitivity for 1H detected relayed DNP of organic solids at fast MAS
David Lyndon Emsley, Saumya Badoni, Pierrick Berruyer
Dynamic nuclear polarization (DNP) combined with high magnetic fields and fast magic angle spinning (MAS) has opened up a new avenue for the application of exceptionally sensitive 1H NMR detection schemes to study protonated solids. Recently, it has been s ...
Academic Press Inc Elsevier Science2024129Xe Dynamic Nuclear Polarization Demystified: The Influence of the Glassing Matrix on the Radical Properties
Rolf Gruetter, Andrea Capozzi, Jean-Noël Hyacinthe, Thanh Phong Kevin Lê, Emma Linnea Wiström
129Xe dissolution dynamic nuclear polarization (DNP) is a controversial topic. The gold standard technique for hyperpolarized xenon magnetic resonance imaging (MRI) is spin exchange optical pumping, which received FDA approval in 2022. Nevertheless, the ve ...
2024QCD worldsheet axion from the bootstrap
Andrea Guerrieri, Victor Gorbenko
The worldsheet axion plays a crucial role in the dynamics of the Yang-Mills confining flux tubes. According to the lattice measurements, its mass is of order the string tension and its coupling is close to a certain critical value. Using the S-matrix Boots ...
New York2024Deuterated TEKPol Biradicals and the Spin-Diffusion Barrier in MAS DNP
David Lyndon Emsley, Federico De Biasi, Yu Rao, Dominik Józef Kubicki, Amrit Venkatesh
The sensitivity of NMR spectroscopy is considerably enhanced by dynamic nuclear polarization (DNP). In DNP polarization is transferred from unpaired electrons of a polarizing agent to nearby proton spins. In solids, this transfer is followed by the transpo ...
2023Pure Isotropic Proton NMR Spectra in Solids using Deep Learning
David Lyndon Emsley, Daria Torodii, Pinelopi Moutzouri, Manuel Cordova, Bruno Simões de Almeida
The resolution of proton solid-state NMR spectra is usually limited by broadening arising from dipolar interactions between spins. Magic-angle spinning alleviates this broadening by inducing coherent averaging. However, even the highest spinning rates expe ...
WILEY-V C H VERLAG GMBH2023Development of strategies to improve 1H resolution in NMR of solids at 100 kHz magic-angle spinning
In solid-state NMR, homonuclear dipolar couplings contribute greatly to the broadening of 1H spectral line shapes. Even at the fastest magic-angle spinning rates (MAS) available today [100-150kHz], the linewidths still extend over several hundred Hertz, li ...
EPFL2023