Rovibronic coupling
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| Coupling in science |
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| Classical coupling |
| Rotational–vibrational coupling |
| Quantum coupling |
| Quantum-mechanical coupling |
| Rovibrational coupling |
| Vibronic coupling |
| Rovibronic coupling |
| Angular momentum coupling |
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Rovibronic coupling denotes the simultaneous interactions between rotational, vibrational, and electronic degrees of freedom in a molecule. When a rovibronic transition occurs, the rotational, vibrational, and electronic states change simultaneously, unlike in rovibrational coupling. The coupling can be observed spectroscopically and is most easily seen in the Renner-Teller effect in which a linear polyatomic molecule is in a degenerate electronic state and bending vibrations will cause a large Rovibronic coupling.
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