title: Comparative study of motions in dimethylsulfone by noise excitation and solid echo spectroscopy.
abstract: 2H NMR spectra of dimethylsulfone were measured with noise excitation and solid echo NMR spectroscopy in the temperature range from 125 to 355 K. Besides the known fact that broad NMR spectra can be measured with both methods, in comparable times it is shown that for noise excitation, the signal loss is negligible compared to echo spectroscopy in the regime when the correlation times of the motions are of the order of magnitude of the echo pulse spacing. For simulating the dynamic NMR spectra acquired with noise excitation, only the motional process must be taken into account and relaxation can be neglected. Furthermore, the problem of restricted acquisition bandwidth in noise NMR spectroscopy is discussed.
authors.affiliation: Friedrich-Schiller-Universität Jena, Institute of Optics and Quantum Electronics, Division for High Frequency Spectroscopy, Germany.
authors.lastname: Hirsch
authors.forename: K
authors.initials: K
authors.lastname: Weingarten
authors.forename: B
authors.initials: B
authors.lastname: Blümich
authors.forename: C
authors.initials: C
authors.lastname: Jäger
mesh_terms: D003080:Cold Temperature; D003903:Deuterium; D004121:Dimethyl Sulfoxide; D017352:Echo-Planar Imaging / Q000379:methods; D005583:Fourier Analysis; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D012815:Signal Processing, Computer-Assisted; D013450:Sulfones / Q000737:chemistry*; D013816:Thermodynamics
chemical_list: D013450:Sulfones; C025910:dimethyl sulfone; D003903:Deuterium; D004121:Dimethyl Sulfoxide