Solvent-Induced Symmetry Breaking
- 9 May 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 90 (18), 185505
- https://doi.org/10.1103/physrevlett.90.185505
Abstract
Symmetry breaking can be induced in a number of ways including interactions with a solvent. An example is the triiodide ion which is centrosymmetric in the gas phase. Molecular dynamics simulations of the triiodide ion in solution have been used to investigate the extent of symmetry breaking in a variety of solvents. We find that the triiodide ion loses its symmetry in water, ethanol, and methanol which form hydrogen bonds with the ion. This results in a localization of charge at one end of the ion and breaking of the geometric symmetry. The extent of symmetry breaking increases as the temperature is lowered. Correlation times for interconversion are reported and the energetics of symmetry breaking are presented. Analogies are made with second-order phase transitions.Keywords
This publication has 18 references indexed in Scilit:
- Impulsive Control of Ground Surface Dynamics of I3-in SolutionThe Journal of Physical Chemistry A, 2001
- A Monte Carlo study of symmetry breaking of I3− in aqueous solution using a multistate diabatic HamiltonianThe Journal of Chemical Physics, 2001
- Vibrational dephasing of I3− in cooled ethanol solutions — where is the inhomogeneity?Journal of Molecular Liquids, 2000
- Geminate recombination of I3− in cooled liquid and glassy ethanolChemical Physics Letters, 1999
- Does solvation cause symmetry breaking in the I3− ion in aqueous solution?The Journal of Chemical Physics, 1998
- Theoretical Study of the Solvent Effect on Triiodide Ion in SolutionsThe Journal of Physical Chemistry A, 1998
- Transient Anisotropy and Fragment Rotational Excitation in the Femtosecond Photodissociation of Triiodide in SolutionThe Journal of Physical Chemistry A, 1998
- Vibrational relaxation and geminate recombination in the femtosecond-photodissociation of triiodide in solutionThe Journal of Chemical Physics, 1996
- Solvent Effects in the Raman Spectra of the Triiodide Ion: Observation of Dynamic Symmetry Breaking and Solvent Degrees of FreedomThe Journal of Physical Chemistry, 1996
- More Is DifferentScience, 1972