13C NMR Analysis of Aspirin Chemical Shift (Observed ppm) Assignment(s) (A'-J') Expected Chemical Shift Range (ppm) B' D' E' JOH Acetylsalicylic Acid (Aspirin) 169 & 170 152 125 135 (4 peaks) - 122 20 160 140 120 100 Figure 14.13 125.7-MHz 13C-NMR spectrum of aspirin in CDCl3. solvent 80 60 40 20 ppm
13C NMR Analysis of Aspirin Chemical Shift (Observed ppm) Assignment(s) (A'-J') Expected Chemical Shift Range (ppm) B' D' E' JOH Acetylsalicylic Acid (Aspirin) 169 & 170 152 125 135 (4 peaks) - 122 20 160 140 120 100 Figure 14.13 125.7-MHz 13C-NMR spectrum of aspirin in CDCl3. solvent 80 60 40 20 ppm
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Chapter1: Chemical Foundations
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Transcribed Image Text:13C NMR Analysis of Aspirin
Chemical Shift
(Observed ppm)
Assignment(s)
(A'-J')
Expected Chemical
Shift Range (ppm)
B'
D'
E'
JOH
Acetylsalicylic Acid
(Aspirin)
169 & 170
152
125 135 (4 peaks)
-
122
20
160
140
120
100
Figure 14.13 125.7-MHz 13C-NMR spectrum of aspirin in CDCl3.
solvent
80
60
40
20
ppm
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