On rotation and vibration motions of molecules
On rotation and vibration motions of molecules
复制标题
论分子的旋转运动和振动运动
DOI:
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发表时间:
1984
期刊:
影响因子:
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通讯作者:
A. H. Poincaré
中科院分区:
文献类型:
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作者:
L. Annalesde;A. A. G. Uichardet;A. H. Poincaré
In the second stage of the Born-Oppenheimer approximation, a moving molecule is considered as a set of points of the euclidian space which represent the kernels of the atoms constituting the molecule; in books on Molecular Spectroscopy, under the title «separation of rotation and vibration motions», one actually defines the rotational and vibrational energies, but not the vibration motion. In the present paper we propose a mathematical definition of these last ones, and we prove that they cannot be separated from the rotation motions, in that sense that performing a purely vibrational motion, a molecule can, at the end of a finite time, come to a final configuration which is deduced from the initial one by an arbitrary pure rotation Definition mathematique des mouvements de vibration, qui ne peuvent etre separes des mouvements de rotation, en ce sens qu'en effectuant un mouvement purement vibratoire, une molecule peut, au bout d'un temps fini, parvenir a une configuration finale qui se deduit de la configuration initiale par une rotation pure arbitraire