shown below). Meanwhile the corresponding signals of the non deuterated DMSO appear at 8 2.45 ppm as a singlet in the 'H NMR spectrum and at & 39.7 ppm also as a singlet in the The 13C{'H} NMR signal of a sample of commercial deuterated DMSO (sold as DMSO-ds) shows 13C{H} (not shown). Clearly explain these observations. (Note: the small differences in a septet at 8 39.5 ppm while the 'H NMR spectrum shows a quintet signal at 8 2.50 ppm (both chemical shift are due to isotopic shift, do not account for them).
shown below). Meanwhile the corresponding signals of the non deuterated DMSO appear at 8 2.45 ppm as a singlet in the 'H NMR spectrum and at & 39.7 ppm also as a singlet in the The 13C{'H} NMR signal of a sample of commercial deuterated DMSO (sold as DMSO-ds) shows 13C{H} (not shown). Clearly explain these observations. (Note: the small differences in a septet at 8 39.5 ppm while the 'H NMR spectrum shows a quintet signal at 8 2.50 ppm (both chemical shift are due to isotopic shift, do not account for them).
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:2.45 ppm as a singlet in the 'H NMR spectrum and at ô 39.7 ppm also as a singlet in the
13C{'H} (not shown). Clearly explain these observations. (Note: the small differences in
shown below). Meanwhile the corresponding signals of the non deuterated DMSO appear at ô
a septet at 8 39.5 ppm while the 'H NMR spectrum shows a quintet signal at 8 2.50 ppm (both
The 13C{H} NMR signal of a sample of commercial deuterated DMSO (sold as DMSO-de) shows
4.
chemical shift are due to isotopic shift, do not account for them).
画画8至
1H-NMR of DMSO-d6
13C-NMR of DMSO-d6
Lau chown below. The
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