IR Spectroscopy

Question 1

Alcohol

Answer 1

OH

3650-3200

strong (3/4 in length), broad

Question 2

Primary Amine

Answer 2

NH

3500-3300

medium (1/3 in length), broad with 2 spikes on end

Question 3

Triple Bond

Answer 3

2260-2100

sharp

Question 4

Ketone (Carbonyl)

Answer 4

C double bond O

1780-1650

strong (3/4 in length), thiner

Question 5

Alkene

Answer 5

C double bond C

1680-1600

medium (1/2 in length), sharp

Question 6

Alkyne

Answer 6

C-H

3300

strong (7/8 in length), sharp

C triple bond C

2120

medium (1/2 in length), very sharp

Question 7

Carboxylic Acid

Answer 7

very big peak at 3000 and as the peak goes down it gets smaller and goes into two smaller peaks

strong (7/8 in length), medium in width at 1700