Nuclear spin-lattice relaxation in trans-polyacetylene (CH)x. A confined soliton model including nuclear spin flip diffusion
نویسندگان
چکیده
2014 A « confined soliton model » in which the solitons move over a small part of the chain is developed. The on-chain nuclei are relaxed directly by contact hyperfine interactions whilst the remainder nuclei relax via nuclear spin flip diffusion. It is found that the proton spin-lattice relaxation data can be rationalized in terms of the fast and confined one-dimensional hopping motion of the soliton whilst that for enriched 13C one requires in addition a much more dominating mechanism that of nuclear spin flip diffusion. J. Physique 46 (1985) 1683-1691 OCTO.BRE 1985, Classification Physics Abstracts 76.60E
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