title: Heteronuclear double resonance in nuclear magnetic resonance spectroscopy: Relaxation of multiple-quantum coherences.
abstract: Theoretical 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 (13)C-(1)H 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.
authors.affiliation: Ecole Polytechnique Federale de Lausanne, Institut des Sciences et Ingenierie Chimiques, Lausanne 1015, Switzerland.
authors.forename: Simone
authors.initials: S
authors.lastname: Ulzega
authors.forename: Mariachiara
authors.initials: M
authors.lastname: Verde
authors.forename: Fabien
authors.initials: F
authors.lastname: Ferrage
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Bodenhausen
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002247:Carbon Isotopes; D005990:Glycerol / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D011789:Quantum Theory
chemical_list: D002247:Carbon Isotopes; D002244:Carbon; D006859:Hydrogen; D005990:Glycerol