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  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > June  >
In the Laboratory
Rotational Analysis of FTIR Spectra from Cigarette Smoke. An Application of Chem Spec II Software in the Undergraduate Laboratory
Alan R. Ford, William A. Burns, and Scott W. Reeve
Department of Chemistry, Arkansas State University, State University, AR 72467
Cover
June 2004
Vol. 81 No. 6
p. 865
Abstract
A modification to the classic FTIR diatomic gas experiment performed in the undergraduate physical chemistry laboratory is described. A "real-world" sample source in the form of cigarette smoke has been incorporated and students are asked to identify the principal components present by analyzing the rotationally-resolved infrared spectra to determine fundamental molecular constants for each species observed. The analysis is facilitated by the use of Chem Spec II software. Chem Spec II is a noncommercial software package designed to emulate standard spreadsheet programs such as Excel or Quattro Pro and aid students with the assignment and analysis of rotationally resolved infrared spectra.
Supplement
A detailed description of the laboratory, including tables of rotational constants and rotation–vibration transition frequencies, is available.
*  Contents JCE2004p0865W.doc (Microsoft Word)
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*  Citation
 Ford, Alan R.; Burns, William A.; Reeve, Scott W. J. Chem. Educ. 2004 81 865.
*  Keywords
 Computer Assisted Instruction; Consumer Chemistry; IR Spectroscopy; Laboratory Instruction; Physical Chemistry
*  History
 Created:
Last Updated:		 May 2, 2004
January 21, 2005
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