Ulzega, S.Verde, M.Ferrage, F.Bodenhausen, G.2009-12-222009-12-222009-12-22200910.1063/1.3269044https://infoscience.epfl.ch/handle/20.500.14299/44908WOS:000272803000041Theoretical and experimental investigations of the relaxation rates of multiple-quantum coherences during heteronuclear double resonance (HDR) pulse sequences are presented. Average Liouvillian theory yields analytical expressions to describe the effective relaxation rates of multiple-quantum coherences during HDR irradiation. Experiments were carried out on a C-13-H-1 pair in glycerol to measure the effective auto- and cross-relaxation rates of multiple-quantum coherences during HDR schemes. The experimental results exhibit a very good agreement with theoretical predictions, even when the average Liouvillian expansion is truncated to zeroth order.EndorLiouville equationNMR spectroscopyorganic compoundsTransition Cross-PolarizationCorrelated Time-ModulationIsotropic Chemical-ShiftsRotating-FrameDispersion ExperimentsSynchronous-NutationPulse ExperimentsNmr-SpectroscopyProteinsDynamicstext::journal::journal article::research article