MS: M+ is not seen but equals 144. i. Relative Intensity IR: 120 100 80 20 0 27 29 30 373840 40 M 3300 4047 For 3000 5051525354 50 500058 60 C. D. Shift = 1.9 ppm, 1H, multiplet E. Shift = 3.9 ppm, 1H, broad. 03 050607 Shift = 1.3 ppm, 4H, doublet of doublet 70 7273 1700 77 79 8182838400 80 Some wavenumbers are marked for clarity. Proton NMR: Note: J's not provided because of the complex splitting. A. Shift =0.8 ppm, 12H, doublet B. Shift = 1.1 ppm, 2H, multiplet m/z 90 95 100 110 120 www. What is the numerical value of the base peak in the MS shown above? What is the minimum number of H present in the molecule? How do you know? What functional group(s) besides alkyl is/are present? Use other spectra to help. 12027 130 140 143

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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i.
MS: M+ is not seen but equals 144.
Relative Intensity
IR:
120
100
80
ني د ن ن
B.
27 29
20 20 3001
30
3738
3300
E.
40
3000
50
60
C. Shift = 1.3 ppm, 4H, doublet of doublet
D. Shift = 1.9 ppm, 1H, multiplet
Shift = 3.9 ppm, 1H, broad.
70
7275
-
1700
Some wavenumbers are marked for clarity.
Proton NMR: Note: J's not provided because of the complex splitting.
A. Shift =0.8 ppm, 12H, doublet
Shift = 1.1 ppm, 2H, multiplet
77 79 8182838400
80
m/z
90
100
11112
110
I
www
120
1227
130
What is the numerical value of the base peak in the MS shown above?
What is the minimum number of H present in the molecule? How do you know?
What functional group(s) besides alkyl is/are present? Use other spectra to help.
What is the likely molecular formula for the compound
Draw a structure for the compound consistent with the information collected from the spectra.
140
143
Transcribed Image Text:i. MS: M+ is not seen but equals 144. Relative Intensity IR: 120 100 80 ني د ن ن B. 27 29 20 20 3001 30 3738 3300 E. 40 3000 50 60 C. Shift = 1.3 ppm, 4H, doublet of doublet D. Shift = 1.9 ppm, 1H, multiplet Shift = 3.9 ppm, 1H, broad. 70 7275 - 1700 Some wavenumbers are marked for clarity. Proton NMR: Note: J's not provided because of the complex splitting. A. Shift =0.8 ppm, 12H, doublet Shift = 1.1 ppm, 2H, multiplet 77 79 8182838400 80 m/z 90 100 11112 110 I www 120 1227 130 What is the numerical value of the base peak in the MS shown above? What is the minimum number of H present in the molecule? How do you know? What functional group(s) besides alkyl is/are present? Use other spectra to help. What is the likely molecular formula for the compound Draw a structure for the compound consistent with the information collected from the spectra. 140 143
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