Using the key identify the funtional groups and draw them on

Using the key, identify the funtional groups and draw them on the appropriate peaks in each of the three IR spectra.

1. Bisphenyl Z

2. Phenol

3. Cyclohexane

Key:

NICOLET 20SX FT-IR 14 15 16 7 18 19 21 22 MICRONS 13 9 10 4.5 5.5 2.5 2.6 272.8 2.9 3 100 0.1 50I 1600 1400 1200 1000 1800 4000 3800 3600 3400 3200 3000 2B 2600 2400 220O WAVENUMBERS

Solution

BiPhenyl: 3100 cm-1 sp2 C-H stretch, 1600 cm-1 C=C stretch and 1500 to 1400 cm-1 aromatic ring vibrations.

Phenol : 3500 to 3000 cm-1 hydroxy stretch, 3100 cm-1 sp2 C-H stretch, 1600 cm-1 C=C stretch and 690, 750 cm-1 indicates mono substitution on benzene.

Cyclohexane : 3100 cm-1 Sp3 C-H stretch.