Journal
PHYSICA B-CONDENSED MATTER
Volume 350, Issue 1-3, Pages E363-E366Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2004.03.097
Keywords
Ethylene glycol; Quasielastic scattering; Reorientations; Diffusion
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Results of neutron-scattering experiments on ethylene glycol (H-O-CH(2)-CH(2)-O-H) at T= 300, 348 and 393K are presented. Quasielastic scattering is investigated using the simplest models of the reorientation and diffusion motions. Two reorientation components are observed: the fast component with the radius of rotation R(0) <= 1.1 angstrom, which is probably connected with the rotation motions of protons of C-H groups and the slow reorientation of the whole molecule with R(0)approximate to 1.6 angstrom. Parameters of the translation diffusion motion were obtained using a random jump diffusion model. (C) 2004 Elsevier B.V. All rights reserved.
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