4000 00 80 60 IR Spectrum (liquid film) 40 20 % of base peak 3000 13C NMR Spectrum (100 MHz, CDCI, solution) 40 80 proton decoupled 10 DEPT CH₂ CH₂ CH 7.2 200 ¹H NMR Spectrum (400 MHz, CDCI, solution) 78 expansion 7.0 9 93 игр 6.8 ppm 8 2000 M 108 120 v (cm¹) m/e 160 160 7 1600 L 1 200 120 6 1200 240 5 800 Mass Spectrum C7H₂O 280 solvent 80 4 1 3 UV Spectrum max 269 nm (log₁0€ 3.2) 40 2 solvent: methanol 1 08 (ppm) TMS 0 8 (ppm)

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Steps in Spectral Identification: •Identify major peaks in IR spectrum, if any. •Deduce structural fragments for each of the 1H NMR spectral signals. •Give the structure of the compound •Assign the signals in the 1H NMR spectra to specific protons •Assign carbons to the peaks in the 13C NMR spectrum Step 1. Calculate the degree of unsaturation for the unknown. Step 2. Determine the functional group from IR Step 3. Analyzing the MS spectrum Step 4. Analyzing the 1H NMR spectra Determine the number of different kinds of protons Step 5. Analyzing the 13C NMR spectra
4000
100
80
60
IR Spectrum
(liquid film)
40
20
% of base peak
40
3000
13C NMR Spectrum
(100 MHz, CDC13 solution)
proton decoupled
10
7.2
DEPT CH₂ CH₂ CH
200
¹H NMR Spectrum
(400 MHz, CDCI, solution)
78
expansion
80
7.0
L
9
muy
93
11
6.8 ppm
2000
8
M 108
120
v (cm¹)
160
m/e
160
www
1600
1200
120
800
Mass Spectrum
C7H8O
200 240 280
T
7 6 5
solvent
+
1
80
I
4
1
3
UV Spectrum
max 269 nm (log₁0€ 3.2)
40
1
2
solvent: methanol
1
0
8 (ppm)
TMS
0
8 (ppm)
Transcribed Image Text:4000 100 80 60 IR Spectrum (liquid film) 40 20 % of base peak 40 3000 13C NMR Spectrum (100 MHz, CDC13 solution) proton decoupled 10 7.2 DEPT CH₂ CH₂ CH 200 ¹H NMR Spectrum (400 MHz, CDCI, solution) 78 expansion 80 7.0 L 9 muy 93 11 6.8 ppm 2000 8 M 108 120 v (cm¹) 160 m/e 160 www 1600 1200 120 800 Mass Spectrum C7H8O 200 240 280 T 7 6 5 solvent + 1 80 I 4 1 3 UV Spectrum max 269 nm (log₁0€ 3.2) 40 1 2 solvent: methanol 1 0 8 (ppm) TMS 0 8 (ppm)
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