Abstract
Density dependence of the rate constants of diffusion-controlled ionic recombination reactions in supercritical (SC) fluoroform was investigated to explore the effect of the local density enhancement on diffusion-controlled reactions. For the ionic recombination, the effect was clearly detected as strong retardation of reaction rate near the critical density. On the other hand, for the radical self-termination, the effect was not detected. This difference must be due to the strong solute-solvent interaction between ionic species and solvent molecules. The local density around the charged molecules should be drastically enhanced by Coulomb interactions.
| Original language | English |
|---|---|
| Pages (from-to) | 37-44 |
| Number of pages | 8 |
| Journal | Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu |
| Volume | 14 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2004 |
| Externally published | Yes |
Keywords
- Clustering
- Dielectric constant
- Diffusion-controlled reaction
- Ionic recombination
- Laser flash photolysis
- Local density enhancement
- Radical self-termination
- Supercritical fluid
- Viscosity
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics