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Proceedings Paper

Determination of the length of zigzag chain molecules from Raman spectra
Author(s): Vladimir S. Gorelik; Sergei S. Verjaskin; Pavel P. Sverbil; Anatolii V. Chervyakov; Ludmila I. Zlobina; Olga N. Sharts
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Paper Abstract

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: CnH2n+2 (n equals 6, 7, 10), CnF2n+1Br (n equals 6, 7, 8, 10, 14), CnF2n+2, CnH2nO2 (n equals 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.

Paper Details

Date Published: 31 October 2001
PDF: 11 pages
Proc. SPIE 4469, Raman Spectroscopy and Light Scattering Technologies in Materials Science, (31 October 2001); doi: 10.1117/12.447380
Show Author Affiliations
Vladimir S. Gorelik, P.N. Lebedev Physical Institute (Russia)
Sergei S. Verjaskin, P.N. Lebedev Physical Institute (Russia)
Pavel P. Sverbil, P.N. Lebedev Physical Institute (Russia)
Anatolii V. Chervyakov, P.N. Lebedev Physical Institute (Russia)
Ludmila I. Zlobina, P.N. Lebedev Physical Institute (Russia)
Olga N. Sharts, San Diego State Univ. (United States)

Published in SPIE Proceedings Vol. 4469:
Raman Spectroscopy and Light Scattering Technologies in Materials Science
David L. Andrews, Editor(s)

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