Shuto, Akinori and Takahashi, Toru T. and Ohga, Yasushi and Asano, Tsutomu and Saito, Hirokazu and Matsuo, Kohei and Luedemann, Hans-Dietrich (2000) Pressure effects on the thermal Z/E isomerization of 4-(dimethylamino)-4 '-nitroazobenzene in a liquid polymer. A comparison of dynamic solvent effects in polymeric and monomeric solvents. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 55 (6-7). pp. 616-622. ISSN 0932-0784
Full text not available from this repository. (Request a copy)Abstract
Effects of pressure on the thermal Z/E isomerization of 4-(dimethylamino)-4'-nitroazobezene were studied in a silicon oil at various temperatures. The results were compared with the ones previously obtained in glycerol triacetate (GTA) and 2-methylpentane-2,4-diol (MPD). Even in the polymer, pressure effects expected from the transition state theory were obtained at low pressures (P < 200 MPa). However, as in GTA and MPD, the transition state theory became invalid at higher pressures. For the Polymeric liquid, the macroscopic sheer viscosity obviously does not suffice for a quantitative description of the microscopic frictions between the reactant and the solvent molecules.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SLOW CONFORMATIONAL-CHANGES; N-BENZYLIDENEANILINES; REACTION VOLUMES; MECHANISM; FLUCTUATIONS; ACTIVATION; KINETICS; high-pressure kinetics; Z/E isomerization; dynamic solvent effects; liquid polymer |
| Subjects: | 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Biophysik und physikalische Biochemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 May 2022 08:47 |
| Last Modified: | 03 May 2022 08:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/42475 |
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