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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > September  >
In the Laboratory
An Interactive Dry Lab Introduction to Vibrational Raman Spectroscopy Using Carbon Tetrachloride
Monty L. Fetterolf and Jack G. Goldsmith
Department of Chemistry, University of South Carolina Aiken, Aiken, SC 29801
Cover
September 1999
Vol. 76 No. 9
p. 1276
Abstract
An introduction to vibrational Raman spectroscopy is presented in a dry lab format that utilizes free software to add interactivity. Relevant IR and Raman spectra of carbon tetrachloride are systematically compared and analyzed on the basis of a broad review of general vibrational spectroscopy. Included in the discussion are the classic physical and group theory descriptions of IR and Raman spectroscopy, depolarization measurements, the application of Boltzmann analysis for sample temperature calculations, isotope effects visible under high-resolution conditions, and a full description of the Raman instrument and conditions used to acquire all spectra. The software utilized to provide interactivity allows determination of peak positions and intensities, which means data acquisition is the only experience students lack. All spectra are available on the Internet, as is the free software that allows viewing and manipulation.
Supplement
Supplementary material provided is in the form of a Microsoft Word for Windows 6.0 document containing experimental details, background information, results/discussion, and an appendix of student activities. They have been compressed as zip (for Windows) and sit (for Macintosh) files. It is also available as a pdf, accessible with Acrobat Reader.
*  Contents
*  Download
supp1276.zip

supp1276.sit

supp1276.pdf
More Information
*  Citation
 Fetterolf, Monty L.; Goldsmith, Jack G. J. Chem. Educ. 1999 76 1276.
*  Keywords
 Instrumental Methods; Physical Chemistry; IR Spectroscopy; Group Theory; Internet
*  History
 Created:
Last Updated:		 July 30, 1999
November 22, 2005
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