Rotational-Vibrational Coupling

The bond length of a molecule increases slightly when it is vibrationally excited. This affect its rotational energy, in a phenomenon called rotational-vibrational coupling.

[@권혁준-c6y]

Thank you for your clear explanation! I now understand its concept.

[@PhysicalChemistry]

That's good, I'm glad to hear it

[@markpwoodward]

Quick note. I think you meant for this video to be before "Spectroscopy of Diatomic Molecules" in the "Diatomic Molecules" play list. i.e. it should be second to last, not last. Thank you for these valuable lectures!

[@PhysicalChemistry]

You're absolutely correct. Ten points to Gryffindor. Thanks for taking the time to point it out. I have fixed the order now.