Influence of Conformational Equilibria upon the Self-Diffusion of the Conformers in Neat Liquids

Influence of Conformational Equilibria upon the Self-Diffusion of the Conformers in Neat Liquids

The self-diffusion coefficients D of the isomers of liquid N-isopropyl-N-methylacetamide (IPMAA) and acetylacetone (AC AC) are studied as functions of temperature. For AC AC also pressure dependent studies were undertaken. In IPMAA the eis and trans conformers have almost identical D. In liquid ACAC...

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Veröffentlicht in:Zeitschrift für Naturforschung. A, A journal of physical sciences A journal of physical sciences, 2000-07, Vol.55 (6), p.605-608
Hauptverfasser: Chen, Liuping, Lüdemann, Hans-Dietrich
Format: Artikel
Sprache:eng
Schlagworte:
Conformers
Neat Liquids
Pressure
Self Diffusion
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Zusammenfassung:The self-diffusion coefficients D of the isomers of liquid N-isopropyl-N-methylacetamide (IPMAA) and acetylacetone (AC AC) are studied as functions of temperature. For AC AC also pressure dependent studies were undertaken. In IPMAA the eis and trans conformers have almost identical D. In liquid ACAC, D is always smaller than D , this difference being 15% around 300 K.
ISSN:0932-0784
1865-7109
DOI:10.1515/zna-2000-6-707