Carbon-13 NMR Relaxation Study of the Internal Dynamics in Cyclodextrins in Isotropic Solution

13C nuclear spin relaxation processes in seven cyclodextrins (from six-membered α to twelve-membered η) were investigated in 2H2O solution at multiple magnetic fields. Detailed analysis of 13C longitudinal relaxation in laboratory and rotating frames and 13C{1H} nuclear Overhauser enhancement in the...

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Bibliographic Details
Published in:The journal of physical chemistry. B 2010-01, Vol.114 (1), p.59-65
Main Authors: Bernatowicz, Piotr, Ruszczyńska-Bartnik, Katarzyna, Ejchart, Andrzej, Dodziuk, Helena, Kaczorowska, Ewa, Ueda, Haruhisa
Format: Article
Language:English
Subjects:
B: Macromolecules, Soft Matter
Carbon Isotopes - chemistry
Cyclodextrins - chemistry
Magnetic Resonance Spectroscopy
Models, Molecular
Molecular Dynamics Simulation
Solutions - chemistry
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Summary:13C nuclear spin relaxation processes in seven cyclodextrins (from six-membered α to twelve-membered η) were investigated in 2H2O solution at multiple magnetic fields. Detailed analysis of 13C longitudinal relaxation in laboratory and rotating frames and 13C{1H} nuclear Overhauser enhancement in these molecules yielded their rotational diffusion tensors and a semiquantitative picture of their internal dynamics.
ISSN:1520-6106
1520-5207
DOI:10.1021/jp9084734