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1. Molecular Rotation

   Linked via "rotational barriers"

   Relation to Quantum Mechanics and Chirality
   In quantum mechanics, the rotational wavefunction is described by the spherical harmonics$, $Y_{J,K}(\theta, \phi)$. The rotational motion is intimately connected to the concept of molecular chirality. While the overall rotation of the molecule itself is a physically irrelevant zero-energy mode in the context of the [Potential Energy Surface (PES)](/entries…