Carbon-13 NMR relaxation study of the internal dynamics in cyclodextrins in isotropic solution.
(13)C nuclear spin relaxation processes in seven cyclodextrins (from six-membered alpha to twelve-membered eta) were investigated in (2)H(2)O solution at multiple magnetic fields. Detailed analysis of (13)C longitudinal relaxation in laboratory and rotating frames and (13)C{(1)H} nuclear Overhauser enhancement in these molecules yielded their rotational diffusion tensors and a semiquantitative picture of their internal dynamics.
Bernatowicz
Piotr
P
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland. bernat@ichf.edu.pl
Ruszczyńska-Bartnik
Katarzyna
K
Ejchart
Andrzej
A
Dodziuk
Helena
H
Kaczorowska
Ewa
E
Ueda
Haruhisa
H
D002247:Carbon Isotopes / Q000737:chemistry; D003505:Cyclodextrins / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D056004:Molecular Dynamics Simulation; D012996:Solutions / Q000737:chemistry*
D002247:Carbon Isotopes; D003505:Cyclodextrins; D012996:Solutions