Title: NMR Relaxation in Adamantane and Hexamethylenetetramine: Diffusion and Rotation
Abstract:Abstract The ultraslow-motion NMR technique has been used to measure translational diffusion coefficients in the plastic crystal adamantane; The diffusion coefficients in the brittle crystal hexamethy...Abstract The ultraslow-motion NMR technique has been used to measure translational diffusion coefficients in the plastic crystal adamantane; The diffusion coefficients in the brittle crystal hexamethylenetetramine (HMT) were too low to be measured by this technique; they are smaller than those for adamantane by a factor of 10−4. It is claimed on the basis of Weertman's theory that this difference in diffusion coefficients accounts for the difference in plastic flow properties between the two materials. For rotation in β-adamantane, α-adamantane, and HMT the respective jump times are:Read More
Publication Year: 1969
Publication Date: 1969-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 110
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