Assignment of IR frequencies - assign the IR frequencies that best correspond to the actual frequencies, for the different functional groups, shown below. Functional Groun Actual F

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
icon
Related questions
Question
5
Sp2022 3
110
%T
100
90
80
70-
60
50
40
30
4000
3500
3000
2500
2000
1750
1500
1250
1000
750
cm-1
CNUsersksie533¥Desktop GCINSp2022 3.ispd
Item
Value
Sample name
3
2
Sample ID
Option
15
Intensity Mode
Apodization
9
Transmittance
None
No. of Scans
3386,73-
1686.22
1683.36
1604,76
L1456.15-
1304.68
1293.24
1218.94
1134.62
1094.61
1011.73-
968.86
838.82-
803.10
790.24
66 6
753.08
703.07
665.91
657.34
610.18
Transcribed Image Text:Sp2022 3 110 %T 100 90 80 70- 60 50 40 30 4000 3500 3000 2500 2000 1750 1500 1250 1000 750 cm-1 CNUsersksie533¥Desktop GCINSp2022 3.ispd Item Value Sample name 3 2 Sample ID Option 15 Intensity Mode Apodization 9 Transmittance None No. of Scans 3386,73- 1686.22 1683.36 1604,76 L1456.15- 1304.68 1293.24 1218.94 1134.62 1094.61 1011.73- 968.86 838.82- 803.10 790.24 66 6 753.08 703.07 665.91 657.34 610.18
Assignment of IR frequencies
assign the IR frequencies that best correspond to the actual frequencies, for the different functional groups, shown below.
Functional Group
Actual Frequencies (cm²l)
Exp. Frequencies (em²lh!
a. ester (C=O)
1754 (sXsh)
b. carboxyl group (C=O)
1697 (s)(sh)
c. carboxyl group (0-H)
2990 (s)(br).
d. phenyl group
1457 (s)(sh)
1605 (m)(sh)
based on the IR spectra of your sample
* Note: the main identifier is the frequency value the following informadon about the peak type is not pertinent in peak classification.
() -strong, (m)-medium, and (w)-weak refer to the intensity of the peak( all relative to other peaks in spectra)
(sh)- sharp and (br)-borad - refer to the shape of the peak. If peak is not either (sh) or (br) do not need to include this.
Transcribed Image Text:Assignment of IR frequencies assign the IR frequencies that best correspond to the actual frequencies, for the different functional groups, shown below. Functional Group Actual Frequencies (cm²l) Exp. Frequencies (em²lh! a. ester (C=O) 1754 (sXsh) b. carboxyl group (C=O) 1697 (s)(sh) c. carboxyl group (0-H) 2990 (s)(br). d. phenyl group 1457 (s)(sh) 1605 (m)(sh) based on the IR spectra of your sample * Note: the main identifier is the frequency value the following informadon about the peak type is not pertinent in peak classification. () -strong, (m)-medium, and (w)-weak refer to the intensity of the peak( all relative to other peaks in spectra) (sh)- sharp and (br)-borad - refer to the shape of the peak. If peak is not either (sh) or (br) do not need to include this.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
NMR Spectroscopy of Organic Molecules
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Organic Chemistry: A Guided Inquiry
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:
9780618974122
Author:
Andrei Straumanis
Publisher:
Cengage Learning
Principles of Modern Chemistry
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning