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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > November  >
In the Laboratory
An EPR Experiment for the Undergraduate Physical Chemistry Laboratory
R. A. Butera and D. H. Waldeck
Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260
Cover
November 2000
Vol. 77 No. 11
p. 1489
Abstract
An experiment that illustrates the principles of electron paramagnetic resonance spectroscopy in the undergraduate physical chemistry laboratory is described. Students measure the value of g for DPPH and use it to determine the value of g for two inorganic complexes, Cu(acac)2 and VO(acac)2. The students use two instruments: an instructional device that illustrates the principles of EPR and a commercial Varian E4 spectrometer. This approach allows an elucidation of the principles of the method and provides experience with a more sophisticated research-grade instrument.
Supplement
Details concerning the experimental design and implementation are available.
*  Contents JCE2000p1489W1.wpd, JCE2000p1489W2.wpd, JCE2000p1489W3.wpd (Word Perfect 9)
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JCE2000p1489W.pdf

JCE2000p1489W.sit

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More Information
*  Citation
 Butera, Richard A.; Waldeck, David H. J. Chem. Educ. 2000 77 1489.
*  Keywords
 ESR Spectrometry; Laboratory Equipment / Apparatus; Laboratory Instruction; Physical Chemistry
*  History
 Created:
Last Updated:		 October 6, 2000
August 31, 2005
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