Numerical study ofT1andT2rotational relaxation times of HCl in liquid Ar
- 10 October 1988
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 65 (2), 413-421
- https://doi.org/10.1080/00268978800101131
Abstract
Energy relaxation (T 1) and dephasing (T 2) processes are analysed for the rotational relaxation of diatomic polar molecules in rare-gas liquids under markovian assumption. Bath autocorrelation functions defining the markovian relaxation superoperator, which contains all information about T 1 and T 2 processes, are derived for an intermolecular potential approximated by a truncated series of Legendre polynomials P J . Hence, analytical expressions for T 1 and T 2 are obtained in terms of a reduced set of parameters regarding both the diatomic and the liquid as their mutual interaction. Numerical contribution to T 1 and T 2 processes, from P 1 and P 2 terms, is given for a HCl-Ar solution by using a dynamical quasiharmonic model to describe the solvent liquid structure.Keywords
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