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(Classical Mechanics)

Let's say I have a polyatomic molecule, what is the best way for finding the equations of oscillations if they are bounded by a torsion spring?

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The point of this kind of model is to give you an intuitive basis for modeling system in a realm (inter-atomic interactions) where you don't have day-to-day experience. You are expected to build up the answer from bits of basic physics. Stuff like Hooke's law. – dmckee Nov 14 '11 at 14:36
What is Your kowledge about such vibrations and IR spectroscopy in general? Why do You imply torsional springs? For coupling of vibrational oscillators or for the vibrations as such? – Georg Nov 14 '11 at 14:50

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