14: C₂H₂O₂ 100 4800 5.0 1H 4.5 16:1662 2918.87 4.0 3.5 3.0 2000 FAR BELT 1H - 2.5 15 1240.39 1500 1H 1377.35 2.0 PPM 1170.94 991.54 CB LCOT LTC6 879.01 800.58

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL4: Proton (1h) Nmr Spectroscopy
Section: Chapter Questions
Problem 15E
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Please help a bit confused, first attachment is just an example, the problem I need help with is C4H6O2

14: C₂H₂O₂
100-
4800
5.0
3500
1H
4.5
SA
z2010162
3088
4.0
2500
3.5
3.0
2000
RABILT
1H
2.5
1500
1H
377.35
6C 02
2.0 PPM
6 BLTT
1837 83 991.54
1000
Transcribed Image Text:14: C₂H₂O₂ 100- 4800 5.0 3500 1H 4.5 SA z2010162 3088 4.0 2500 3.5 3.0 2000 RABILT 1H 2.5 1500 1H 377.35 6C 02 2.0 PPM 6 BLTT 1837 83 991.54 1000
For each problem, you must:
1) Calculate the degree of unsaturation.
2) Assign the principal IR absorption bands above 1500 cm¹
3) Draw the structure of the compound
4) Label the protons on your structure with letters and assign them to peaks on the NMR spectrum
(see the example below).
B
OHD
D
1H
C
2H
3.5
3.0
2.5
2.0
B
2H
1.5
A
3H
1.0 PPM
0.5
Transcribed Image Text:For each problem, you must: 1) Calculate the degree of unsaturation. 2) Assign the principal IR absorption bands above 1500 cm¹ 3) Draw the structure of the compound 4) Label the protons on your structure with letters and assign them to peaks on the NMR spectrum (see the example below). B OHD D 1H C 2H 3.5 3.0 2.5 2.0 B 2H 1.5 A 3H 1.0 PPM 0.5
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