Heteronuclear double resonance in nuclear magnetic resonance spectroscopy: Relaxation of multiple-quantum coherences.
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.
Ulzega
Simone
S
Ecole Polytechnique Federale de Lausanne, Institut des Sciences et Ingenierie Chimiques, Lausanne 1015, Switzerland.
Verde
Mariachiara
M
Ferrage
Fabien
F
Bodenhausen
Geoffrey
G
D002244:Carbon / Q000737:chemistry*; D002247:Carbon Isotopes; D005990:Glycerol / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D011789:Quantum Theory
D002247:Carbon Isotopes; D002244:Carbon; D006859:Hydrogen; D005990:Glycerol