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

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

doi:10.1103/PhysRevLett.105.258303

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

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

Research output: Contribution to journal › Article › peer-review

173 Scopus citations

Abstract

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.

Original language	English
Article number	258303
Journal	Physical Review Letters
Volume	105
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.105.258303
State	Published - Dec 16 2010
Externally published	Yes

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10.1103/PhysRevLett.105.258303

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abstract = "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.",

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AU - Gainaru, C.

AU - Meier, R.

AU - Schildmann, S.

AU - Lederle, C.

AU - Hiller, W.

AU - Rössler, E. A.

AU - Böhmer, R.

PY - 2010/12/16

Y1 - 2010/12/16

N2 - 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.

AB - 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.

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

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