(adsbygoogle = window.adsbygoogle || []).push({}); What are "Jacobi coordinates," and why are they useful?

I am working on a quantum chemistry problem involving triatomic molecules. My advisor keeps talking about "Jacobi coordinates" and how they're a calculational convenience when it comes time to write out the Hamiltonian. Can someone describe them to me, and why they make life easier? I can't seem to find a good resource for this on the Web...

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# What are Jacobi coordinates, and why are they useful?

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