A Strategy for Incorporating 13C NMR into the Organic Chemistry Lecture and Laboratory Courses

Perry C. Reeves and Chris P. Chaney
Department of Chemistry, Abilene Christian University, Abilene, TX 79699
J. Chem. Educ., 1998, 75 (8), p 1006
DOI: 10.1021/ed075p1006
Publication Date (Web): August 1, 1998

Abstract

The use of spectroscopy in establishing the structures of molecules is an important component of the first course in Organic Chemistry. However, the point in the course at which these techniques are best introduced remains uncertain. We suggest that carbon nuclear magnetic resonance spectroscopy should be introduced at an early stage of the lecture course, specifically while studying the alkanes, and used extensively for structure determination throughout the course. A laboratory activity illustrating the use of proton-decoupled, APT ("attached proton test"), and DEPT ("distortionless enhancement by polarization transfer") spectra in determining the structure of an unknown C6 or C7 hydrocarbon is presented. A laboratory management plan which ensures that each student will have "hands-on" experience with the FT-NMR spectrometer is also described.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Organic Chemistry

Keywords (Subject):

Instrumental Methods

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  • Received: August 03, 2009

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