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Quantitative Determination of Methylcyclohexanone Mixtures Using 13C NMR Spectroscopy: A Project for an Advanced Chemistry Laboratory

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Joseph W. LeFevre and Augustine Silveira Jr.

Chemistry Department, SUNY at Oswego, Oswego, NY 13126

J. Chem. Educ., 2000, 77 (1), p 83

DOI: 10.1021/ed077p83

Publication Date (Web): January 1, 2000

Section:

History, Education, and Documentation

Abstract

The percentage composition of mixtures of four methylcyclohexanones was determined using 13C NMR spectroscopy as a quantitative analytical method. The data were acquired using standard broadband proton decoupling and inverse-gated decoupling, the latter done both with and without the paramagnetic relaxation reagent chromium(III) acetylacetonate [Cr(acac)3].

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

NMR Spectroscopy

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