Chemical Physics Letters, Vol.695, 235-239, 2018
Electrodynamical forbiddance of a strong quadrupole light- molecule interaction in fullerene C-60 and its withdrawal in fullerene C-70
It is demonstrated that in fullerene C-70, there is a withdrawal of an Electrodynamical forbiddance of a strong quadrupole light-molecule interaction, which is realized in the fullerene C-60. This situation occurs because of the reduction of symmetry of C-70 from the icosahedral symmetry group Y-h to the group D-5h. The withdrawal results in appearance of the lines in the SERS spectra of C-70, which are forbidden in usual Raman scattering and are allowed in infrared absorption. The measured SERS spectra of C-70 demonstrates existence of such lines that strongly confirms our ideas about the dipole -quadrupole SERS mechanism. (C) 2018 Elsevier B. V. All rights reserved.