100 90 90 80 60 70 60 60 % Transmittance 50 2935.1 2250.5 1224.6 1072.2 1041.4 1417.4 1355.7 1378.9 2877.3 30 30 2979.5 40 40 20 20 10 10 1116.6 4500 4250 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 750 500 250 Wavenumbers (cm-1)

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter20: Molecular Mass Spectrometry
Section: Chapter Questions
Problem 20.16QAP
Question

Molecular    Formula:    _________________________
Degree    of    Unsaturation:    ____________________
1.    Analysis    of    infrared    (IR)    spectrum:    
Observations    (absorptions    in    cm-1) Inference

100
90
90
80
60
70
60
60
% Transmittance
50
2935.1
2250.5
1224.6
1072.2
1041.4
1417.4
1355.7
1378.9
2877.3
30
30
2979.5
40
40
20
20
10
10
1116.6
4500 4250 4000 3750
3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 750
500
250
Wavenumbers (cm-1)
Transcribed Image Text:100 90 90 80 60 70 60 60 % Transmittance 50 2935.1 2250.5 1224.6 1072.2 1041.4 1417.4 1355.7 1378.9 2877.3 30 30 2979.5 40 40 20 20 10 10 1116.6 4500 4250 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 750 500 250 Wavenumbers (cm-1)
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