Assign the bands (absorptions) in the following IR spectra with the corresponding bonds/functional groups in the...

Question

Question

13) Assign the bands (absorptions) in the following IR spectra with the corresponding groups in the molecules shown. 20p. CH2CCH2CH3 HC CCH2OH C-O

Answer 1

Answer #1

Spectrum A:

3100 to 3000 cm-1 Sp2 C-H stretch

3000 to 2800 cm-1 Sp3 C-H stretch

1730 cm-1 carbonyl stretch

1400 to 1600 cm-1 aromatic ring vibrations

690 and 750 cm-1 mono substitution on benzene.

Spectrum B

3500 to 3000 cm-1 OH stretch

3000 to 2800 cm-1 Sp3 C-H stretch

2200 cm-1 C triple bond C stretch

1000 cm-1 C-O stretch.

Answer 2

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