SER spectra analysis of molecules with D-3h and D-6h symmetry groups

• On the basis of the theory of SER spectra, proposed in a previous paper, the SER spectra of 1,3,5-trifluorobenzene, 1,3,5-trideuteriobenzene, benzene and hexafluorobenzene are analysed. It is demonstrated that the bands, caused by the totally symmetric modes and by the mode transforming as the d(z) moment experience large enhancement. The existence of a large number of forbidden bands in the SER spectra is pointed out. Some anomalies in the enhanced spectra are explained by qualitative ideas and by the 'interference phenomenon' of various contributions. It is pointed out that all the observed lines and regularities of the SER spectra can be explained within the framework of the quadrupole and dipole electrodynamical mechanism of the enhancement.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)

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Physical Chemistry

Fysikalisk kemi

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