2873 32 1739.51 1465.18 1387.71 1366.42 1171.25 1054 72 961.35

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
Chapter19: Nuclear Magnetic Resonance Spectroscopy
Section: Chapter Questions
Problem 19.14QAP: What is a rotating frame of reference?
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the Infrared spectroscopy experiment  by using(FTIR) to identify the unknow compound from the list : 
Ethanol
Isoamyl acetate
Hexanal
1-Propanol
Anisaldehyde
Valerophenone
Benzoic Acid
Cyclohexanone
methyl iso-butyl ketone
Benzyl alcohol
Propionaldehyde
Benzaldehyde
Phenylacetic acid
3-methylcyclohexanone
Methanol
Ethyl acetate
Pinacolone
which compound is represented in the picture ?

1800
1600
3200
3000
2800
2600
Wavenumbers (cm-1)
2959 26
2873 32
1739.51
1465.18
1387.71
1366 42
1227.88
1054 72
961.35
Transcribed Image Text:1800 1600 3200 3000 2800 2600 Wavenumbers (cm-1) 2959 26 2873 32 1739.51 1465.18 1387.71 1366 42 1227.88 1054 72 961.35
Expert Solution
Step 1 Analysis

Given: Infrared spectrum of an unknown compound

To find: To identify the unknown compound by using its IR spectra.

Solution: Infrared spectroscopy is the spectroscopy that deals with the interaction of the molecule with that of the infra red light. Infrared spectroscopy or IR spectroscopy is also known as vibrational spectroscopy. We can analyse the IR spectra by knowing the range of stretching frequency of functional groups. There is a complete list of stretching frequency of different functional groups for identifying the IR spectra.

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