Question

For each spectrum, state the functional groups present (alcohol, acid, amine and/or carbonyl- aldehyde, ketone, amide, ester) and state which C-H bond (aliphatic, alkene, alkyne and/or benzene- ortho, para, meta) is present.

1.

HAVENUMERI DOST 2000 u Wher

2.

Answer 1

spectrum 1

1. 772,697 cm-1 - aromatic out of plane bending of mono substituted benzene.
2. 2967 cm-1 - aliphatic CH stretching in CH3
3. 3028 cm-1 - aromatic CH stretching.
4. 1028 cm-1 - isopropyl skeletal stretching.
5. 1583 cm-1 - C=C stretching skeletal vibrations of benzene.

spectrum 2

1. 3346,3334 cm-1 - OH stretching.
2. 2947,2933 cm-1 - aliphatic CH stretching.
3. 1602 cm-1 - C=C aromatic skeletal stretching.
4. 834 cm-1 - CH out of plane bending para.
5. 1461 cm-1 - CH2 bend.