Some notions about sehr spectra of crystal violet

Abstract

The paper presents our opinion on the investigations and results of various kind of vibrational spectra of crystal violet (CV). After our analysis of the published spectra we came to conclusion, that the assignment of vibrations in this molecule remains questionable. Some experimental and calculations data permit us to conclude, that the vibrational bands in the SEHR spectra of CV contain the bands, caused by vibrations with and irreducible representations, that strongly confirm our idea about the main reason of surface enhanced optical processes and SEHRS in particular-the strong dipole and quadrupole light-molecule interactions.