The results of Raman and fluorescence spectra investigations of fluoroorganic aromatic compounds are presented. We present technique for realizing of qualitive and quantitive analysis of fluoroorganic aromatic compounds on the base of Raman and fluorescence spectroscopy. We propose to applicate the pulsed copper vapor laser for exciting of Raman and fluorescence spectra of fluoroorganic samples. The Raman spectra have been received for a number of compounds as: 1 -bromoperfluorooctane, perfluorodecanoic acid, 1 ,3 ,5-trifluoromethylbenzene, hexafluorobenzene, pentafluoropyridine, p-fluoro-DL-phenyl-alanine, m-fluoro-DL-phenylalanine, o-fluoro-DL-phenyl-alanine, m-fluoro-DL-tyrosine, 6-fluoro-DL-tryptophan, 5-fluorouracil, 5-Fluorouridine ,5-fluoroindole.on the base of our measurements we have worked out the manner of linear molecule CnF2n+1 Br length recognizing.Thus, presented technique, based on using of the modem laser sources and registration system of Raman and fluorescence spectra, permitted to identify the different fluoroorganic molecules in mixtures and pure samples.
Spectroscopic method of zigzag chain molecules length determination from Raman spectra was developed. The method is based on measuring Raman lines frequencies, corresponding to acoustical modes and different optical modes of chain molecules. The excitation of Raman spectra was produced by continuous argon laser or by pulsed radiation from copper vapor laser. Raman spectra of hydrocarbon and fluorocarbon zigzag structure molecules have been studied. The investigations have been fulfilled for following substances: C n H 2n+2 (n=6, 7, 10), C n F 2n+1 Br (n=6,7,8, 10, 14), C n F 2n+2 , C n H 2n O 2 (n=4, 5, 8, 10, 11, 13, 15, 18). The frequency dependence of some Raman modes on the length of zigzag molecule has been observed. The theory, explaining this dependence, is developed. The obtained results allow estimating fluorocarbon and hydrocarbon molecules length from the Raman spectra parameters.
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