Details
| Original language | English |
|---|---|
| Pages (from-to) | 173-182 |
| Number of pages | 10 |
| Journal | Journal of molecular liquids |
| Volume | 86 |
| Issue number | 1 |
| Publication status | Published - Jun 2000 |
| Event | The Polish-Israeli-German Symposium 'Dynamical Processes in Condensed Molecular Systems' - Cracow, Pol Duration: 19 Jun 1999 → 23 Jun 1999 |
Abstract
Broadband dielectric spectroscopy (10-2Hz-109Hz) is employed to study the molecular dynamics of the simple glassforming liquid ethylene glycol (EG) being confined to zeolites of varying size and topology. A sharp transition is observed from a single-molecule dynamics (with an Arrhenius-type temperature dependence) to that of a liquid (with a temperature dependence of the mean relaxation rate according to a Vogel-Fulcher-Tammann-law (VFT-law)): While EG in silicalite and H-ZSM-5 (showing a single-molecule relaxation) has a coordination number of four, EG in zeolite beta or AlPO4-5 has a coordination number of five and behaves like a bulk liquid.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Spectroscopy
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Materials Chemistry
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In: Journal of molecular liquids, Vol. 86, No. 1, 06.2000, p. 173-182.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Molecular dynamics in zeolitic host systems
AU - Huwe, A.
AU - Kremer, F.
AU - Kärger, J.
AU - Behrens, Peter
AU - Schwieger, W.
AU - Ihlein, G.
AU - Weiß, Ö
AU - Schüth, F.
PY - 2000/6
Y1 - 2000/6
N2 - Broadband dielectric spectroscopy (10-2Hz-109Hz) is employed to study the molecular dynamics of the simple glassforming liquid ethylene glycol (EG) being confined to zeolites of varying size and topology. A sharp transition is observed from a single-molecule dynamics (with an Arrhenius-type temperature dependence) to that of a liquid (with a temperature dependence of the mean relaxation rate according to a Vogel-Fulcher-Tammann-law (VFT-law)): While EG in silicalite and H-ZSM-5 (showing a single-molecule relaxation) has a coordination number of four, EG in zeolite beta or AlPO4-5 has a coordination number of five and behaves like a bulk liquid.
AB - Broadband dielectric spectroscopy (10-2Hz-109Hz) is employed to study the molecular dynamics of the simple glassforming liquid ethylene glycol (EG) being confined to zeolites of varying size and topology. A sharp transition is observed from a single-molecule dynamics (with an Arrhenius-type temperature dependence) to that of a liquid (with a temperature dependence of the mean relaxation rate according to a Vogel-Fulcher-Tammann-law (VFT-law)): While EG in silicalite and H-ZSM-5 (showing a single-molecule relaxation) has a coordination number of four, EG in zeolite beta or AlPO4-5 has a coordination number of five and behaves like a bulk liquid.
UR - http://www.scopus.com/inward/record.url?scp=0034207191&partnerID=8YFLogxK
U2 - 10.1016/S0167-7322(99)00138-5
DO - 10.1016/S0167-7322(99)00138-5
M3 - Conference article
AN - SCOPUS:0034207191
VL - 86
SP - 173
EP - 182
JO - Journal of molecular liquids
JF - Journal of molecular liquids
SN - 0167-7322
IS - 1
T2 - The Polish-Israeli-German Symposium 'Dynamical Processes in Condensed Molecular Systems'
Y2 - 19 June 1999 through 23 June 1999
ER -