An EPR Experiment for the Undergraduate Physical Chemistry Laboratory

R. A. Butera ^[1] ; D. H. Waldeck ^[1]
1. [1] University of Pittsburgh
  
  University of Pittsburgh
  
  City of Pittsburgh, Estados Unidos
Localización: Journal of chemical education, ISSN 0021-9584, Vol. 77, Nº 11 (November), 2000, págs. 1489-1489
Idioma: inglés
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Resumen
- 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.