Question

How would you distinguish benzoic acid and benzyl alcohol by their infrared spectra?

Answer 1

It is important to contrast and compare the OH peaks in the IR spectra of benzyl alcohol and benzoic acid.

What does benzoic acid's IR spectrum look like?

• The fingerprint region is the region between wavenumbers 1500 and 400 cm-1 on the right side of the infrared spectrum of benzoic acid.
• The benzoic acid molecule's atoms vibrate in a unique pattern that involves intricately overlapping vibrations, which causes it.

What does benzyl alcohol's IR spectrum look like?

• A peak at 700 is typically used to indicate a C-Cl bond.
• At 1500, there are a couple more peaks that are focused on a C=C bond.

How do IR spectra work?

• The IR spectrum is made up of the radiation's wave number divided by its percent transmittance (or absorbance) through molecules.

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Answer 2

The OH peaks in the IR spectra of benzyl alcohol and benzoic acid should be compared and contrasted.

What is the IR spectra of Benzoic acid?

• The right-hand portion of the infrared spectrum of benzoic acid, between wavenumbers 1500 and 400 cm-1, is referred to as the fingerprint region.

• It results from a special combination of intricately overlapping vibrations of the atoms within the benzoic acid molecule.

What is the IR spectra of Benzyl alcohol?

• A C-Cl bond is frequently shown by a peak at 700.

• There are a few more peaks at 1500 that are directed at a C=C bond.

What is IR spectra?

The percent transmittance (or absorbance) of the radiation through the molecule against the radiation's wave number forms the IR spectrum.

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