IR NMR

O-H IR

3200-3500 (strong, broad)

O-H Carboxylic Acid IR

2600-3200 (Broad)

N-H IR

3100-3400, Medium

C-H Alkane IR

2850-3000, Medium

C-H Alkyne IR

3150-3300, Narrow, Strong

C-H Alkene, Aromatics IR

3000-3100, Medium

C≡C and C≡N

2200-2350, Weak

C-H Aldehyde IR

2700-2900, Medium

C=O Carbonyls

1665-1760, Strong

C=C Alkene IR

1640-1680, Medium

C-C Aromatics IR

1450-1550, Medium

R-CH3 (1H-NMR)

0.9

R-CH2-R (1H-NMR)

1.3

RC3-H (1H-NMR)

1.5-2

Allylic (C is next to a pi bond) CH3 (1H-NMR)

1.8

C is next to C=O (1H-NMR)

2-2.3

Ar-CH3 (C is next to Ph) (1H-NMR)

2.3

RC≡C-H (1H-NMR) Alkynyl

2.5

R2N-CH3 (1H-NMR) C is attached to N

2-3

R-CH2-X (1H-NMR) C is attached to Cl,Br,I

2-4

RO-CH3 (1H-NMR) C is attached to O

3.5-4.5

R-CH2-F (1H-NMR) C is attached to F

4-5

R2C=CR-H (1H-NMR) Vinylic H is attached to alkene C

5-5.3

Ar-H (1H-NMR) H is on Ring

7.3

R-CH=O (1H-NMR) Aldehyde H is on C=O

9.7

ROH (1H-NMR) Alcohol

0.5-5

Ar-OH (1H-NMR) Phenol

4-7

Carboxylic Acid O=C-OH (1H-NMR)

10-13

RNH2 (1H-NMR) Amine

0.5-5

ArNH2 (1H-NMR) Aromatic with Amine

3-5

Amide O=C-NHR (1H-NMR)

5-9

R-CH3 (13C-NMR) Primary Alkyl

10-30

R-CH2-R (13C-NMR) Secondary Alkyl

15-55

R3C-H R4-C (13C-NMR) Tertiary or Quaternary Alkyl

20-60

C-I (13C-NMR) C attached to Iodine

0-40

C-Br (13C-NMR) C attached to Bromine

25-55

C-N (13C-NMR) C attached to Nitrogen

40-60

C-Cl (13C-NMR) C attached to Chlorine

40-70

C-O (13C-NMR) C attached to Oxygen

50-90

RC≡CR (13C-NMR) Alkynyl

65-90

R2C=CR2 (13C-NMR) Alkenyl

100-150

Benzene Ring (13C-NMR)

110-165

Carboxylic Acid, Ester, Amide (13C-NMR) C=O

165-185

Ketone, Aldehyde (13C-NMR) C=O

185-220