1. An NMR self-diffusion study of lithium ions in macroscopically oriented lithium-(B)DNA fibers
- Author
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Lárus Einarsson, Lars. Nordenskioeld, Per Olof Eriksson, and Allan Rupprecht
- Subjects
Self-diffusion ,chemistry ,Isotopes of lithium ,General Engineering ,Analytical chemistry ,chemistry.chemical_element ,Lithium ,Pulse sequence ,Nuclear magnetic resonance spectroscopy ,Fiber ,Physical and Theoretical Chemistry ,Pulsed field gradient ,Ion - Abstract
Quadrupolar ion NMR splittings and self-diffusion of {sup 7}Li{sup +} (I = 3/2) ions have been studied in macroscopically oriented Li-(B)DNA fibers. The {sup 7}Li splittings were measured with a double quantum filter pulse sequence, followed by subsequent fitting of the out-of-phase doublet spectrum. Lithium(I) self-diffusion was measured with the pulsed field gradient NMR spin-echo method. Diffusion was found to be restricted in both the parallel and perpendicular direction with respect to the fiber axis.
- Published
- 1990
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