Internal dynamics of hydroxymethyl rotation from CH2 cross-correlated dipolar relaxation in methyl-β-D-glucopyranoside

K. Kövér, G. Batta, Jozef Kowalewski, Leila Ghalebani, Danuta Kruk

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Conventional relaxation parameters (T1-1, T 2-1, and NOE), obtained at different temperatures and magnetic fields, are reported for the hydroxymethyl (C6) carbon in methyl-β-D-glucopyranoside in a D2O/DMSO cryosolvent. These data are interpreted with the Lipari-Szabo model. In addition, two-field measurements of longitudinal and spin-locked relaxation rates related to the cross-correlated carbon-proton dipole-dipole interactions for the same carbon are reported. The complete data set consisting the conventional and cross-correlated relaxation parameters is interpreted using a new "hybrid" approach, in which the Lipari-Szabo model for the auto-correlated spectral densities is combined with the two-site jump model for the cross-correlated spectral densities, with the global correlation time as a common parameter. The two-site jump rates thus obtained are in reasonable agreement with the ultrasonic relaxation measurements, and have reasonable temperature dependence.

Original languageEnglish
Pages (from-to)273-281
Number of pages9
JournalJournal of Magnetic Resonance
Volume167
Issue number2
DOIs
Publication statusPublished - Apr 2004

Fingerprint

Carbon
Spectral density
Ultrasonic relaxation
carbon
dipoles
Temperature
cross relaxation
Magnetic Fields
Dimethyl Sulfoxide
Ultrasonics
Protons
Temperature distribution
temperature distribution
ultrasonics
Magnetic fields
temperature dependence
protons
magnetic fields
methylglucoside
interactions

ASJC Scopus subject areas

  • Molecular Biology
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics

Cite this

Internal dynamics of hydroxymethyl rotation from CH2 cross-correlated dipolar relaxation in methyl-β-D-glucopyranoside. / Kövér, K.; Batta, G.; Kowalewski, Jozef; Ghalebani, Leila; Kruk, Danuta.

In: Journal of Magnetic Resonance, Vol. 167, No. 2, 04.2004, p. 273-281.

Research output: Contribution to journalArticle

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