Rotational–vibrational coupling scale model

AI Thread Summary
The discussion centers on the interest in creating a scale model of rotational-vibrational coupling, a concept in molecular chemistry. Participants express skepticism about the availability of such models in chemistry supply stores, suggesting that building one may be necessary. There is a debate about the effectiveness of a model, given that molecular vibrational states are quantized, which complicates the representation of these phenomena. Despite this, the idea of a model is still considered valuable for educational purposes, particularly in illustrating how spring constants influence rotation and how rotational speed impacts vibration amplitude. The conversation also touches on the potential for using simple materials to create a 2D representation, emphasizing the educational benefits of visualizing these concepts.
Dr Lots-o'watts
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You have to build it... and fly it into space on the Shuttle! Of course, you could build your own rocket or try to earn a ride on a http://en.wikipedia.org/wiki/Vomit_Comet"
 
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Dr Lots-o'watts said:
Do chemistry supply stores sell any? For educationnal purposes? Or do I have to build one?

Wouldn't really work as a good model, considering the molecular vibrational states are quantized. (and we like to pretend rotational-vibrational coupling doesn't exist when constructing partition functions)

But yeah, it's mostly just sticks.
 
@chemisttree: I'd be satisfied with 2D, and wouldn't complain about a little axial friction.

@alxm: Ok, but it's still interesting even as a classical system. It isn't obvious for everyone to visualize just how the spring constant affects rotation. Or how rotation speed affects vibration amplitude.
 

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