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Spectra are given for three compounds. Each compound has one or more of the following
Chapter 12, Problem PROBLEM 12-4(choose chapter or problem)
Spectra are given for three compounds. Each compound has one or more of the following functional groups: alcohol, amine, ketone, aldehyde, and carboxylic acid. Determine the functional group(s) in each compound, and assign the major peaks above 1600 cm-1 .
Questions & Answers
QUESTION:
Spectra are given for three compounds. Each compound has one or more of the following functional groups: alcohol, amine, ketone, aldehyde, and carboxylic acid. Determine the functional group(s) in each compound, and assign the major peaks above 1600 cm-1 .
ANSWER:Step 1 of 4
Interpreting IR spectrum-
Functional group bonds that can cause a change in dipole moment during vibration can absorb IR radiations. The frequency of radiation absorbed depends on the natural vibrational frequency of the functional group.
Therefore, each peak in the IR spectrum of a compound represents the functional groups present in it and therefore, IR spectroscopy is used to identify the functional groups in a compound.