A treatment of vibrational relaxation of impurity molecules in host solids is given, which introduces two improvements over existing theories: (i) The librational degree of freedom is taken into consideration. (ii) Local translational modes at the impurity site are included in the treatment. A reali
Role of rotational-translational coupling in vibrational relaxation of matrix-isolated diatomic molecules
β Scribed by D.J. Diestler; H.Douglas Ladouceur
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 610 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Vlbrational-rotatlonal
couphng, due to the fact that the center of interaction IS displaced from the center of mass in a heteronuclear diitomrc molecule, provides a mechanism for nonradiatwe vibrational relazxation of diitomic impurities in matrlces. A theoretical expresaon for the rate constant in semiquantitative agreement with experiment is derived..
π SIMILAR VOLUMES
Differences between vibrational and rotational rehsation patterns disappex and similarities are reveaIed by\_trxtsforming from stite to er.ergy distributions\_ This IblIows from the constant state density of both osciilators and rotors and the exponential gap 1zw governing their relaxation A simple.
The commutator perturbation method, an algebraic version of the Van Vleck-Primas perturbation method, expressed in terms of ladder operators, has been applied to solving the eigenvalue problem of the Hamiltonian describing the vibrational-rotational motion of a diatomic molecule. The physical model
For the vibration-rotational motion of a diatomic molecule, various forms of an effective Hamiltonian which includes the corrections of the Born-Oppenheimer approximation in the form of radial functions are reviewed. A procedure to fit vibration-rotational and pure rotational transitions is proposed