Rovibronic coupling, also known as rotation/vibration-electron 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 using
spectroscopy
Spectroscopy is the field of study that measures and interprets electromagnetic spectra. In narrower contexts, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum.
Spectro ...
, and is most easily seen in the
Renner–Teller effect The Renner-Teller effect is a phenomenon in molecular spectroscopy where a pair of electronic states that become degenerate at linearity are coupled by rovibrational motion.
The Renner-Teller effect is observed in the spectra of molecules that hav ...
in which a linear polyatomic molecule is in a degenerate electronic state and bending vibrations will cause a large rovibronic coupling.
See also
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Afterglow plasma A plasma afterglow (also afterglow) is the radiation emitted from a plasma after the source of ionization is removed.
The external electromagnetic fields that sustained the plasma glow are absent or insufficient to maintain the discharge in the af ...
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Vibronic coupling
Vibronic coupling (also called nonadiabatic coupling or derivative coupling) in a molecule involves the interaction between electronic and nuclear vibrational motion. The term "vibronic" originates from the combination of the terms "vibrational" a ...
References
Rotation
Molecular vibration
Spectroscopy
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