IR Spectroscopy values

Question 1

1680 - 1840

Answer 1

Carbonyl region

Question 2

1720 - 1750

Answer 2

Carbonyl of esters and carboxylic acids
OH of Carboxylic acids (2500 - 3000)

Question 3

1900 - 200

Answer 3

Allenes

Question 4

2100 - 2260

Answer 4

Asymmetrical alkynes

Question 5

2220 - 2260

Answer 5

Nitriles

Question 6

2850 - 2960

Answer 6

Some alkanes (Csp3 attached to a hydrogen)

Question 7

3000 - 3100

Answer 7

Some alkenes and aromatic compounds (Csp2 — H)

Question 8

3200 - 3600

Answer 8

Alcohols and phenols

Question 9

3300 - 3500

Answer 9

Hydrogens bonded to nitrogen (some amines and amides)

Question 10

1600

Answer 10

Alkenes and benzene derivatives

Question 11

1680

Answer 11

Carbonyl of an amide

Question 12

1710

Answer 12

Carbonyl of aldehydes and ketones

Question 13

1790

Answer 13

Carbonyl of acyl chloride

Question 14

1810

Answer 14

Carbonyl of cyclobutanol

Question 15

1840

Answer 15

Carbonyl of cyclopropanol

Question 16

2780

Answer 16

Hydrogen attached to the sp2 hybridized carbon of an aldehyde

Question 17

3200

Answer 17

Alcohols and phenols with intermolecular bonds

Question 18

3300

Answer 18

Hydrogens attached to a sp hybridized carbon

Question 19

3600

Answer 19

Alcohols and phenols without hydrogen bonds