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Raman excitation profiles of trans ‐ azobenzene in the 361 to 494 nm wavelength range by means of a pulsed dye laser source
Author(s) -
Houben Julien L.,
Masetti Giorgio,
Campani Enzo,
Gorini Giampaolo
Publication year - 1982
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250130104
Subject(s) - azobenzene , raman spectroscopy , wavelength , laser , raman scattering , excitation , absorption (acoustics) , absorption band , materials science , analytical chemistry (journal) , chemistry , optics , optoelectronics , molecule , physics , electrical engineering , organic chemistry , chromatography , composite material , engineering
Several Raman excitation profiles of trans ‐ azobenzene in carbon tetrachloride have been obtained in the wavelength range 361–494 nm. By using 21 different exciting wavelengths from a tunable pulsed dye laser the eight most intense Ramanlines occurring in the 1000–1600 cm −1 shift range were investigated and the effective absorption wavelengths λ eff were located. The results indicate that in the investigated range of exciting wavelengths a few molecular states corresponding to vibrational structures of the π*←π absorption band at 319 nm contribute predominantly to the Raman scattering from all analysed vibrational modes.