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Symmetry properties of the lattice dynamics of nonrigid molecular crystals |
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| Authors: | Wang Yi-Fei Liang Ying-Qiu Tang Ao-Qing |
| Abstract: | The symmetry properties of the lattice dynamics of nonrigid molecular crystals are discussed on mass-weighted translational coordinates and inertia moment-weighted rotational coordinates as well as molecular internal normal coordinates in molecular principal axes frame. An equivalent reducible representation of the wavevector group and the classification of molecular crystal normal modes are provided. A detailed illustrative example is presented. |
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