Selective excitation of hydrogen doubles the yield and improves the robustness of parahydrogen-induced polarization of low-γ nuclei
Andreas B. Schmidt, Arne Brahms, Frowin Ellermann, Stephan Knecht, Stephan Berner, Jürgen Hennig, Dominik von Elverfeldt, Rainer Herges, Jan‐Bernd Hövener, Andrey N. Pravdivtsev
Abstract
We describe a new method for pulsed spin order transfer of parahydrogen-induced polarization (PHIP) that enables high polarization in incompletely 2 H-labeled molecules by exciting only the desired protons in a frequency-selective manner.
Topics & Concepts
Spin isomers of hydrogenPolarization (electrochemistry)ChemistryExcitationHyperpolarization (physics)HydrogenInduced polarizationRobustness (evolution)MoleculeHydrogen moleculeAtomic physicsPhotochemistryNuclear magnetic resonancePhysicsNuclear magnetic resonance spectroscopyStereochemistryPhysical chemistryOrganic chemistryBiochemistryQuantum mechanicsGeneElectrical resistivity and conductivityAdvanced NMR Techniques and ApplicationsAtomic and Subatomic Physics ResearchSolid-state spectroscopy and crystallography