3. Two of the four structures below correspond to the 13C NMR spectra shown on this page. Indicate which structure matches each spectrum by drawing the structures in the boxes along the right side of the page. Label the chemically equivalent carbons with the corresponding letter codes provided on the spectra. When "umbrellas" appear, multiple answers are reasonable, but equivalent Cs still need to be labeled with the same letters on your structures and inequivalent Cs need to be labeled with different letters. NH₂ 200 140 150 Carbon Label A B and C B, C and D N H 100 PPM 120 100 4. Label the carbons on the structures below, using letters to designate the chemically equivalent ones. Then, fill in the tables with the requested information; you may have more rows than you need. One row has been completed for you. HO 80 PPM E Chemical Shift 100-150 ppm D and E 50 F G 20 A Carbon Label A CI Chemical Shift 0-50 ppm

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Chapter1: Chemical Foundations
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3. Two of the four structures below correspond to the 1³C NMR spectra shown on this page.
Indicate which structure matches each spectrum by drawing the structures in the boxes
along the right side of the page. Label the chemically equivalent carbons with the
corresponding letter codes provided on the spectra. When "umbrellas" appear, multiple
answers are reasonable, but equivalent Cs still need to be labeled with the same letters on
your structures and inequivalent Cs need to be labeled with different letters.
NH₂
&
200
A
140
150
120 100
Carbon Label
A
B and C
B, C and D
N
H
100
PPM
80
PPM
60
E
Chemical Shift
100-150 ppm
D and E
50
40
4. Label the carbons on the structures below, using letters to designate the chemically
equivalent ones. Then, fill in the tables with the requested information; you may have more
rows than you need. One row has been completed for you.
HO
F G
20
Carbon Label
A
CI
Chemical Shift
0-50 ppm
Transcribed Image Text:3. Two of the four structures below correspond to the 1³C NMR spectra shown on this page. Indicate which structure matches each spectrum by drawing the structures in the boxes along the right side of the page. Label the chemically equivalent carbons with the corresponding letter codes provided on the spectra. When "umbrellas" appear, multiple answers are reasonable, but equivalent Cs still need to be labeled with the same letters on your structures and inequivalent Cs need to be labeled with different letters. NH₂ & 200 A 140 150 120 100 Carbon Label A B and C B, C and D N H 100 PPM 80 PPM 60 E Chemical Shift 100-150 ppm D and E 50 40 4. Label the carbons on the structures below, using letters to designate the chemically equivalent ones. Then, fill in the tables with the requested information; you may have more rows than you need. One row has been completed for you. HO F G 20 Carbon Label A CI Chemical Shift 0-50 ppm
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