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).
Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL3: Carbon (13c) Nmr Spectroscopy
Section: Chapter Questions
Problem 11E
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![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb491e45a-e250-4f5c-b8bf-ca8e1732863f%2Fbc65aca0-14a4-4456-b08e-0306783a10ab%2Fta1ymj_processed.jpeg&w=3840&q=75)
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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