Chemical Shifts for Protons

methyl

~0.9 PPM

methylene

~1.2 PPM

methine

~1.7 PPM

allylic

~2 PPM

alkynyl

~2.5 PPM

aromatic methyl

~2.5 PPM

alkyl halide

2-4 PPM

alcohol

2-5 PPM

vinylic

4.5-6.5 PPM

aryl

6.5-8 PPM

aldehyde

~10 PPM

carboxylic acid

~12

oxygen, OH/ether

+2.5 PPM for alpha protons

oxygen, ester

+3 PPM for alpha protons

C=O

+1 PPM for alpha protons

for beta protons:

PPM of alpha proton x 0.2

integration: 2H, 3H

ethyl

integration: 1H, 6H

isopropyl 

integration: 9H

tert-butyl

saturated/unsaturated equation (HDI)

(2C+2+N-H-X)/2

0-50 PPM

no double bonds (methyl, methylene, and methine groups)

50-100 PPM

C≡C, C-N, C-O

100-150 PPM

double bonds, and aromatic rings

150-220 PPM

carbonyl groups (C=O), such as ketones, aldehydes, ester

IR: C-H

2700-4000 cm^-1

IR: triple bonds

2100-2300 cm^-1

IR: double bonds (C=O)

1600-1850 cm^-1

IR: single bonds

400-1600 cm^-1

IR: O-H, N-H

>3200 cm^-1

IR: C-H

2600-3300 cm^-1

IR: C=C, C=N

2300-2100 cm^-1

IR: COOH

2200-3600 cm^-1