| [Visitor (112.21.*.*)]answers [Chinese ] | Time :2021-10-25 |  Molecular structure is best measured at temperatures close to absolute zero, as molecular rotation increases as the temperature increases. Quantum mechanics and semi-experimental molecular simulations can yield molecular shapes, and the structure of solid-state molecules can also be determined by X-ray crystallography. Larger molecules usually exist with multiple stable conformations, and the energy barrier between these conformations is higher in the potential energy surface. |
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