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Nuclear-magnetic-resonance measurements reveal the origin of the Debye process in monohydroxy alcohols

Gainaru, C ; Meier, R ; Schildmann, S ; Lederle, C ; Hiller, W ; Rössler, E A ; Böhmer, R

Physical review letters, 2010-12, Vol.105 (25), p.258303-258303, Article 258303 [Periódico revisado por pares]

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Título:
Nuclear-magnetic-resonance measurements reveal the origin of the Debye process in monohydroxy alcohols
Autor: Gainaru, C ; Meier, R ; Schildmann, S ; Lederle, C ; Hiller, W ; Rössler, E A ; Böhmer, R
É parte de: Physical review letters, 2010-12, Vol.105 (25), p.258303-258303, Article 258303
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Monohydroxy alcohols show a structural relaxation and at longer time scales a Debye-type dielectric peak. From spin-lattice relaxation experiments using different nuclear probes, an intermediate, slower-than-structural dynamics is identified for n-butanol. Based on these findings and on translational diffusion measurements, a model of self-restructuring, transient chains is proposed. The model is demonstrated to explain consistently the so-far puzzling observations made for this class of hydrogen-bonded glass forming liquids.
Editor: United States
Idioma: Inglês

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