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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > September  >
In the Laboratory
Raman Spectroscopy of Symmetric Oxyanions
Matthew G. Comstock and Jeffrey A. Gray
Ohio Northern University, Department of Chemistry, Ada, OH 45810
Cover
September 1999
Vol. 76 No. 9
p. 1272
Abstract
We describe an affordable modular Raman spectrometer and its application to a study of symmetric oxyanions in aqueous solution. This experiment and a parallel investigation by computer modeling are intended for use in an undergraduate physical chemistry course. Observed and calculated frequencies for the symmetric stretching vibration of these ions are seen to follow periodic trends related to molecular electronic structure. The instrument is designed with an open architecture so that it may be used interchangeably in other advanced lab experiments such as fluorescence spectroscopy.
Supplement
Supplementary material provided is in the form of an MS Word 98 document (for Macintosh) consisting of background reading, additions/deviations from the written procedure, safety issues, TA instructions, and a price list of major parts. It has been compressed into zip (for Windows) and sit (for Macintosh) files. It is also available as a pdf, accessible with Acrobat Reader.
*  Contents
*  Download
supp1272.zip

supp1272.sit

supp1272.pdf
More Information
*  Citation
 Comstock, Matthew G.; Gray, Jeffrey A. J. Chem. Educ. 1999 76 1272.
*  Keywords
 Laboratory Instruction; Lasers / Laser Spectroscopy; Periodicity / Periodic Table; Physical Chemistry; Quantum Chemistry; Raman Spectroscopy
*  History
 Created:
Last Updated:		 July 30, 1999
November 22, 2005
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