IR Analysis – be sure to staple IR spectra to your report and fill in the following information. (Note there is a table in the attached image listing where the relevant peaks are. The product has an alkyl chain and an ester so look under the aliphatic hydrocarbons (means alkyl group) and ester categories in the table. a) Peak table Peak Position cm-1 Bond Type Functional Group

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...
icon
Related questions
Question

IR Analysis – be sure to staple IR spectra to your report and fill in the following information. (Note there is a table in the attached image listing where the relevant peaks are. The product has an alkyl chain and an ester so look under the aliphatic hydrocarbons (means alkyl group) and ester categories in the table.

a) Peak table

Peak Position cm-1

Bond Type

Functional Group

     
     
     
     
     

b) Briefly explain based on you IR spectra how well your reaction worked.

-(CH2)n- rock when n< 4
-(CH2)n- rock when n>4
1370 and 1385 for (CH3)2CH-
686
d C-H (sym); doublet between
UNIT 31
INFRARED SPECTROSCOPY
ст
Table 31.2 IR Characteristic Frequencies (±15 cm-1)
Aliphatic hydrocarbons
-CH3
2960
st C-H
2870
st C-H
R-OHan
1460
d C-H (asym)
R-OH ar
1380
R-CH,–
RCH-C
st C-H
st C-H
-CH2-
2925
2850
RC-OK
d C-H
Ar-OH
1470
720-725
Ethers
740-770
R-O-
Alkenes
Amin
=CH2
st C-H (asym)
st C-H (sym)
st C-H
st C=C
3085
rut 2980
R-NF
=CH-
3025
C=C
1640-1680
R-CH=CH2
RNF
900-915
985-1000
R2C=CH2
RHC=CHR (trans)
RHC=CHR (cis)
R2C=CHR
880-900
960-990
d C-H out of plane
Am
665-730
R-
800-850
Aromatics
R3
=CH-
K.
3020-3080
st C-H; several bands
st C-C; phenyl ring skeletal;
1580-1630
R.
1470-1530
mono-substituted
often doublets
690-705 (s)
730-775 (s)
730-770 (s)
680-725 (m)
750-810 (s)
860-900 (m)
790-860 (s)
3113 Dethe
1,2-disubstituted
1,3-disubstituted
1,4-disubstituted
1,2,4-trisubstituted
d C-H out of plane
800-860
1,2,3-trisubstituted
860-900
685-720
1,3,5-trisubstituted
770-810
675-730
800-850
1,2,3,4-tetrasubst.
1850-900
1,2,4,5-tetrasubst. &
790-860
1,2,3,5-tetrasubst. &
pentasubstituted
850-900
Alkynes
=C-H
-C=C- (terminal)
-C=C- (central)
3250-3350
2100-2150
st C-H
Nitriles
2180-2260
st C=C
-C=N
st C=C
2220-2260
st C=N
(continued)
Alcohols
Transcribed Image Text:-(CH2)n- rock when n< 4 -(CH2)n- rock when n>4 1370 and 1385 for (CH3)2CH- 686 d C-H (sym); doublet between UNIT 31 INFRARED SPECTROSCOPY ст Table 31.2 IR Characteristic Frequencies (±15 cm-1) Aliphatic hydrocarbons -CH3 2960 st C-H 2870 st C-H R-OHan 1460 d C-H (asym) R-OH ar 1380 R-CH,– RCH-C st C-H st C-H -CH2- 2925 2850 RC-OK d C-H Ar-OH 1470 720-725 Ethers 740-770 R-O- Alkenes Amin =CH2 st C-H (asym) st C-H (sym) st C-H st C=C 3085 rut 2980 R-NF =CH- 3025 C=C 1640-1680 R-CH=CH2 RNF 900-915 985-1000 R2C=CH2 RHC=CHR (trans) RHC=CHR (cis) R2C=CHR 880-900 960-990 d C-H out of plane Am 665-730 R- 800-850 Aromatics R3 =CH- K. 3020-3080 st C-H; several bands st C-C; phenyl ring skeletal; 1580-1630 R. 1470-1530 mono-substituted often doublets 690-705 (s) 730-775 (s) 730-770 (s) 680-725 (m) 750-810 (s) 860-900 (m) 790-860 (s) 3113 Dethe 1,2-disubstituted 1,3-disubstituted 1,4-disubstituted 1,2,4-trisubstituted d C-H out of plane 800-860 1,2,3-trisubstituted 860-900 685-720 1,3,5-trisubstituted 770-810 675-730 800-850 1,2,3,4-tetrasubst. 1850-900 1,2,4,5-tetrasubst. & 790-860 1,2,3,5-tetrasubst. & pentasubstituted 850-900 Alkynes =C-H -C=C- (terminal) -C=C- (central) 3250-3350 2100-2150 st C-H Nitriles 2180-2260 st C=C -C=N st C=C 2220-2260 st C=N (continued) Alcohols
90-Thu Oct 14 10:15:08 2021 (GMT-04:00)
80-
70-
60-
50-
40-
30
20
10-
0-
-10-
-20-
4000
3500
3000
2500
2000
1500
1000
500
Wavenumbers (cm-1)
Thu Oct 14 10:23:42 2021 (GMT-04:00)
FIND PEAKS:
Spectrum:
Region:
Absolute threshold: 35.088
Sensitivity:
Peak list:
Thu Oct 14 10:15:08 2021 (GMT-04:00)
4000.00
400.00
50
Position:
Position:
Position:
Position:
Position:
Position:
416.28
436.02
1242.20
1742.66
2932.72
2957.85
Intensity:
Intensity:
Intensity:
Intensity:
Intensity:
Intensity:
-6.784
-1.200
10.063
6.163
27.416
28.539
mp
2
%Transmittance
1742.66
1242.20
Transcribed Image Text:90-Thu Oct 14 10:15:08 2021 (GMT-04:00) 80- 70- 60- 50- 40- 30 20 10- 0- -10- -20- 4000 3500 3000 2500 2000 1500 1000 500 Wavenumbers (cm-1) Thu Oct 14 10:23:42 2021 (GMT-04:00) FIND PEAKS: Spectrum: Region: Absolute threshold: 35.088 Sensitivity: Peak list: Thu Oct 14 10:15:08 2021 (GMT-04:00) 4000.00 400.00 50 Position: Position: Position: Position: Position: Position: 416.28 436.02 1242.20 1742.66 2932.72 2957.85 Intensity: Intensity: Intensity: Intensity: Intensity: Intensity: -6.784 -1.200 10.063 6.163 27.416 28.539 mp 2 %Transmittance 1742.66 1242.20
Expert Solution
Step 1

Given that the product has an alkyl chain and an ester group, the IR spectra is to be interpreted.

steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Knowledge Booster
Analyzing and Predicting Spectroscopic Data
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
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY