2014/02/27 by V. P. Chelibanov, Chelibanov, V. P., A. M. Polubotko +1
Chemistry · Physics and Astronomy · #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Molecular Spectroscopy and Structure #Spectroscopy and Laser Applications #Spectroscopy and Quantum Chemical Studies #physics.chem-ph
paper · pdf · doi:10.48550/arxiv.1402.6833
12 pages
arxiv created 2014/02/27 · openalex publication_date 2014/02/27 · arxiv updated 2014/02/28 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28
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 .