1H NMR Spectrum (200 MHz, CDCI solution) expansion 2.0 1.0 ppm 10 9 8 7 6 5 4 3 2 1 c) C6H8O2 IR Spectrum (CHCl 3 solution) 4000 1725 mr 3000 2000 1600 1200 800 V (cm³) 1H NMR Spectrum (400 MHz, CDCI, solution) T 10 9 8 7 6 5 4 3 2 1 TMS 0 8 (ppm) TMS 0 8 (ppm) 7. Using the IR and NMR data below, identify the structure of the compound. Briefly explain how you arrived at your answer. (15 pts) a) C4H4N2 IR Spectrum (KBr disk) 4000 2249 3000 2000 1H NMR Spectrum (400 MHz, CDCl3 solution) 10 b) C4H8O2 9 IR Spectrum (CCI4 solution) 4000 8 00 V (cm³) 1600 7 3000 2000 60 ww mm 1744 1200 800 5 4 3 2 1 1600 1200 800 V (cm³) TMS 0 $ (ppm)

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter30: Orbitals And Organic Chemistry: Pericyclic Reactions
Section30.SE: Something Extra
Problem 12VC
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1H NMR Spectrum
(200 MHz, CDCI solution)
expansion
2.0
1.0
ppm
10
9
8
7
6
5
4
3
2
1
c) C6H8O2
IR Spectrum
(CHCl 3 solution)
4000
1725
mr
3000
2000
1600
1200
800
V (cm³)
1H NMR Spectrum
(400 MHz, CDCI, solution)
T
10
9
8
7
6
5
4
3
2
1
TMS
0
8 (ppm)
TMS
0
8 (ppm)
Transcribed Image Text:1H NMR Spectrum (200 MHz, CDCI solution) expansion 2.0 1.0 ppm 10 9 8 7 6 5 4 3 2 1 c) C6H8O2 IR Spectrum (CHCl 3 solution) 4000 1725 mr 3000 2000 1600 1200 800 V (cm³) 1H NMR Spectrum (400 MHz, CDCI, solution) T 10 9 8 7 6 5 4 3 2 1 TMS 0 8 (ppm) TMS 0 8 (ppm)
7. Using the IR and NMR data below, identify the structure of the compound. Briefly
explain how you arrived at your answer. (15 pts)
a) C4H4N2
IR Spectrum
(KBr disk)
4000
2249
3000
2000
1H NMR Spectrum
(400 MHz, CDCl3 solution)
10
b) C4H8O2
9
IR Spectrum
(CCI4 solution)
4000
8
00
V (cm³)
1600
7
3000
2000
60
ww
mm
1744
1200
800
5
4
3
2
1
1600
1200
800
V (cm³)
TMS
0
$ (ppm)
Transcribed Image Text:7. Using the IR and NMR data below, identify the structure of the compound. Briefly explain how you arrived at your answer. (15 pts) a) C4H4N2 IR Spectrum (KBr disk) 4000 2249 3000 2000 1H NMR Spectrum (400 MHz, CDCl3 solution) 10 b) C4H8O2 9 IR Spectrum (CCI4 solution) 4000 8 00 V (cm³) 1600 7 3000 2000 60 ww mm 1744 1200 800 5 4 3 2 1 1600 1200 800 V (cm³) TMS 0 $ (ppm)
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