标题： 偶极-四极理论在表面增强红外吸收中的应用以及对称分子SEIRA光谱中禁戒线的出现 显示英文标题

标题： Dipole-Quadrupole Theory of Surface Enhanced Infrared Absorption and Appearance of Forbidden Lines in the SEIRA Spectra of Symmetrical Molecules

摘要： 本文介绍了偶极-四极矩理论在表面增强红外吸收（SEIRA）中的主要方面。 指出了可能出现在完全对称振动转换为单位不可约表示后引起的谱线，这些谱线在具有足够高对称性的分子通常的红外吸收光谱中是禁戒的。 指出了在质子化二氢和乙烯吸附在蒙脱石上的SEIRA光谱中观察到此类谱线。 结果与我们基于强四极矩光-分子相互作用概念的表面增强光学过程观点相符，这使我们能够发展SERS和SEHRS理论。 显示英文摘要

摘要： The paper presents main aspects of the Dipole-Quadrupole theory of Surface Enhanced Infrared Absorption (SEIRA). It is pointed out the possibility of appearance of the lines, caused by totally symmetric vibrations transforming after the unit irreducible representation, which are forbidden in usual infrared absorption spectra in molecules with sufficiently high symmetry. Observation of such lines in the SEIRA spectra of diprotonated and ethylene, adsorbed on and on mordenites is pointed out. The results well agree with our ideas about surface enhanced optical processes, based on the conception of a strong quadrupole light-molecule interaction, which allows us to develop the SERS and SEHRS theories.