Zone 1

Question 1

Where does Zone 1 take place?

Answer 1

This zone takes place between 3700‐3200 cm‐1 (on the x axis)

Question 2

What are we looking for in Zone 1?

Answer 2

Alcohols, terminal alkynes, N‐H stretches

Question 3

Tips for Zone 1

Answer 3

Peaks may vary in size. Do not immediately rule out peaks because you think they are too small!

Question 4

Alcohols

Answer 4

Occur around 3650 – 3200 cm‐1. Alcohols have a very distinct strong and broad shape. When we see this sort of elongated “U” shape around this region, we know there is an alcohol group.

Question 5

Terminal Alkynes

Answer 5

Occurs around 3340 ‐ 3250 cm‐1

Terminal Alkynes are generally stronger and sharper in shape.

Question 6

N-H Stertches

Answer 6

Occur around 3500 ‐ 3200 cm‐1

N – H stretches can mean amines or amides, but it does not necessarily have to indicate either of these. These are medium in intensity, but are broader in appearance.

Question 7

Primary amine

Answer 7

Question 8

Tertiary amine

Answer 8

Question 9

Secondary Amine (N-H stretch)

Answer 9

Question 10

This zone takes place between 3700‐3200 cm‐1 (on the x axis)

Answer 10

Where does Zone 1 take place?

Question 11

Alcohols, terminal alkynes, N‐H stretches

Answer 11

Zone 1

Question 12

Occur around 3650 – 3200 cm‐1. Alcohols have a very distinct strong and broad shape. When we see this sort of elongated “U” shape around this region, we know there is an alcohol group.

Answer 12

Alcohols

Question 13

Occurs around 3340 ‐ 3250 cm‐1

Terminal Alkynes are generally stronger and sharper in shape.

Answer 13

Terminal Alkynes

Question 14

Occur around 3500 ‐ 3200 cm‐1

N – H stretches can mean amines or amides, but it does not necessarily have to indicate either of these. These are medium in intensity, but are broader in appearance.

Answer 14

N-H Stertches

Question 15

Answer 15

Primary amine

Question 16

Answer 16

Tertiary amine

Question 17

Answer 17

Secondary Amine (N-H stretch)