Intradiffusion in binary fluids. The influence of dipoles and hydrogen bonding

Chen, Liuping and Gross, Thomas and Luedemann, Hans-Dietrich (2002) Intradiffusion in binary fluids. The influence of dipoles and hydrogen bonding. JOURNAL OF MOLECULAR LIQUIDS, 98-9: PII S0167-. pp. 27-40. ISSN 0167-7322

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Abstract

Intradiffusion coefficients D-ji of three binary fluid systems as function of temperature and pressure have been obtained by the pulsed field gradient spin echo technique. The nonpolar component for all three systems is tetramethylsilane (TMS). To this compound pivalonitrile (PN) was added in order to study the influence of large dipole moments upon translational mobility. The other two mixtures contain pivalic acid (PA) and 2,2-dimethyl-1-propanol (DMP). With these compounds the influence of hydrogen bonding was studied. The D-ji of these systems were studied at pressures up to 200 MPa and between the onset of crystallisation in the mixtures at the low temperature side and 423 K. For DMP/TMS analysis of the chemical shifts of the hydroxyl protons as function of c,T, and p yields information about the position of the hydrogen bond equilibria. (C) 2002 Elsevier Science B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: HARD-SPHERE FLUID; HIGH-PRESSURE NMR; SELF-DIFFUSION; MOLECULAR-DYNAMICS; CHEMICAL-SHIFT; DEPENDENCE; COEFFICIENTS; TEMPERATURE; SIMULATIONS; ASSOCIATION;
Subjects: 500 Science > 570 Life sciences
Divisions: Biology, Preclinical Medicine > Institut für Biophysik und physikalische Biochemie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 27 Oct 2021 05:51
Last Modified: 27 Oct 2021 05:51
URI: https://pred.uni-regensburg.de/id/eprint/40341

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