e) C4H₂O₂ 100 IR Spectrum (liquid film) 4000 8 8 8 8 % of base peak 3000 2000 1600 1200 800 V (cm³) M+ =88 Mass Spectrum C4H8O2 40 80 120 160 m/e 200 240 280 13C NMR Spectrum (100.0 MHz, CDCI, solution) proton decoupled DEPT CH CH CH solvent 200 160 120 80 40 1H NMR Spectrum (400 MHz, CDCI, solution) expansion 0 8 (ppm) expansion 3.8 3.6 ppm 1.8 1.6 ppm 10 9 8 7 6 5 4 3 2 1 TMS 0 8 (ppm)

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL3: Carbon (13c) Nmr Spectroscopy
Section: Chapter Questions
Problem 9CTQ
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e) C4H₂O₂
100
IR Spectrum
(liquid film)
4000
8 8 8 8
% of base peak
3000
2000
1600
1200
800
V (cm³)
M+
=88
Mass Spectrum
C4H8O2
40
80
120
160
m/e
200 240
280
13C NMR Spectrum
(100.0 MHz, CDCI, solution)
proton decoupled
DEPT CH CH CH
solvent
200
160
120
80
40
1H NMR Spectrum
(400 MHz, CDCI, solution)
expansion
0 8 (ppm)
expansion
3.8
3.6 ppm
1.8
1.6
ppm
10
9
8
7
6
5
4
3
2
1
TMS
0
8 (ppm)
Transcribed Image Text:e) C4H₂O₂ 100 IR Spectrum (liquid film) 4000 8 8 8 8 % of base peak 3000 2000 1600 1200 800 V (cm³) M+ =88 Mass Spectrum C4H8O2 40 80 120 160 m/e 200 240 280 13C NMR Spectrum (100.0 MHz, CDCI, solution) proton decoupled DEPT CH CH CH solvent 200 160 120 80 40 1H NMR Spectrum (400 MHz, CDCI, solution) expansion 0 8 (ppm) expansion 3.8 3.6 ppm 1.8 1.6 ppm 10 9 8 7 6 5 4 3 2 1 TMS 0 8 (ppm)
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