Amplified Overhauser DNP with Selective Deuteration: Attenuation of Double-Quantum Cross-Relaxation
Ravi Shankar Palani, Michael Mardini, Léo Delage-Laurin, Daniel Banks, Yifu Ouyang, Eric Bryerton, James Kempf, Timothy M. Swager, Robert G. Griffin
Abstract
-BDPA attaining a maximum of ∼90 at 14.1 T and 5 kHz MAS, the highest observed OE-DNP enhancement to date under these conditions. The approach may be utilized to optimize other polarizing agents exhibiting an OE, an important DNP mechanism with a favorable field and spinning frequency dependence.
Topics & Concepts
SpinsNuclear Overhauser effectPolarization (electrochemistry)ChemistryRelaxation (psychology)Chemical physicsNuclear magnetic resonanceNuclear magnetic resonance spectroscopyMaterials sciencePhysicsPhysical chemistryStereochemistryCondensed matter physicsPsychologySocial psychologyAdvanced NMR Techniques and ApplicationsSolid-state spectroscopy and crystallographyElectron Spin Resonance Studies