甲烷分子中强四极相互作用的电动学禁戒及其在表面增强超拉曼散射光谱中的表现
Electrodynamical Forbiddance of Strong Quadrupole Light-Molecule Interaction in the Methane Molecule and its Manifestation in Surface Enhanced Hyper Raman Scattering Spectra
摘要：
在偶极-四极理论的框架下，证明了在对称群甲烷分子中，强四极相互作用对SEHRS谱的形成没有影响，而强四极相互作用对SEHRS谱的形成有明显的电动力学禁止作用。这种禁止导致这样的事实，即由完全对称振动引起的谱线，在单位不可约表示之后变换，这在具有另一个足够高的点对称性基团的对称分子中观察到，例如具有对称性基团的吡嗪和吩嗪，必须是轻微的，或者根本不存在。在这种情况下，在甲烷中，最增强的谱线是由振动引起的，由不可约表示变换，或。
英文摘要：
It is demonstrated in the framework of the Dipole-Quadrupole theory, that strong quadrupole light-molecule interaction, which is responsible for the most enhancement of SEHRS in the methane molecule, which belongs to the symmetry group, experiences so-called electrodynamical forbiddance due to electrodynamical law, and does not influence on the formation of the SEHRS spectra. This forbiddance results in the fact that the lines, caused by the totally symmetric vibrations, transforming after the unit irreducible representation, which are observed in symmetrical molecules with another sufficiently high groups of the point symmetry, such as pyrazine and phenazine, with symmetry group, must be slight, or be absent at all. In this case in methane the most enhanced lines are those, caused by vibrations, transforming by the irreducible representation, or .
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