reference signals for 1H NMR
proton type δ (ppm)                   proton type δ (ppm)
reference                   alkyl protons next to
a functional group
Si(CH3)4    (TMS) **missing image** 0.0                   C-H as part of an acetal/ketal **missing image** 4.4 - 6.1
hydrocarbons                   C-H next to alcohol/ether **missing image** 3.3 - 4.5
alkane protons **missing image** 0.7 - 2.8                   C-H next to aldehyde/ketone **missing image** 2.0 - 2.7
     alkane (methyl) protons **missing image** 0.7 - 1.3                   C-H next to amine **missing image** 2.2 - 2.9
     alkane (methylene) protons **missing image** 1.2 - 1.6                   C-H next to azide **missing image** 3.4 - 4.3
     alkane (methine) protons **missing image** 1.4 - 1.8                   C-H next to carboxylic acid **missing image** 2.1 - 4.2
     aralkyl (benzylic) protons **missing image** 2.2 - 2.8                   C-H next to carboxylic acid halide **missing image** 2.6 - 4.1
alkene (allylic) protons **missing image** 1.5 - 2.6                   C-H next to cyanate **missing image** 3.6 - 4.5
alkene (vinylic) protons **missing image** 4.5 - 6.5                   C-H next to epoxide **missing image** 2.5 - 3.6
alkyne (acetylenic) protons **missing image** 1.8 - 3.1                   C-H next to ester (carbonyl side) **missing image** 2.0 - 2.2
arene (phenyl) protons **missing image** 6.0 - 8.5                   C-H next to ester (ether side) **missing image** 3.7 - 4.1
protons that are part of
a functional group		                   C-H next to halide **missing image** 2.5 - 4.5
alcohol (alkyl alcohol) proton **missing image** 2.5 - 5                        C-H next to bromine **missing image** 2.7 - 4.1
alcohol (aryl alcohol/phenolic) proton **missing image** 5 - 8                        C-H next to chlorine **missing image** 3.1 - 4.1
aldehyde proton **missing image** 9.5 - 10.5                        C-H next to fluorine **missing image** 4.0 - 4.5
amine proton **missing image** 1 - 3                        C-H next to iodine **missing image** 2.0 - 4.0
carboxylic acid proton **missing image** 10 - 13                   C-H next to nitrile (cyanide) **missing image** 2.0 - 3.6
                  C-H next to nitro **missing image** 4.0 - 4.5
                  C-H next to sulfone **missing image** 2.5 - 3.5
                  C-H next to thioalcohol/thioether **missing image** 2.0 - 4.0

splitting patterns in 1H NMR
number of
equivalent
couplings		 multiplet
appearance		 integral ratio
0 singlet (s) 1
1 doublet (d) 1 : 1
2 triplet (t) 1 : 2 : 1
3 quartet (q) 1 : 3 : 3 : 1
4 quintet 1 : 4 : 6 : 4 : 1
5 sextet 1 : 5 : 10 : 10 : 5 : 1
6 septet 1 : 6 : 15 : 20 : 15 : 6 : 1

Note: "m" is frequently used to denote a higher-order multiplet; "br" is sometimes used to indicate a broad signal

3JHH coupling constants in 1H NMR
cis-alkene 4 - 12 Hz           cis-cycloalkane (Jax,eq) 4 - 5 Hz
trans-alkene 12 - 18 Hz           trans-cycloalkane (Jax,ax) 10 - 14 Hz

reference signals for 13C NMR
carbon type δ (ppm)                   carbon type δ (ppm)
hydrocarbons                   next to a functional group
methyl **missing image** 0 - 35                   C next to alcohol **missing image** 50 - 65
methylene **missing image** 15 - 40                   C next to amine **missing image** 35 - 50
methine **missing image** 25 - 50                   C next to azide **missing image** 10 - 60
quaternary carbon **missing image** 30 - 40                   C next to bromine **missing image** 20 - 40
alkene **missing image** 100 - 150                   C next to chlorine **missing image** 25 - 50
alkyne **missing image** 65 - 90                   C next to ether **missing image** 50 - 75
arene **missing image** 110 - 175                   C next to fluorine **missing image** 80 - 95
in a functional group                   C next to iodine **missing image** 0 - 20
C in an aldehyde/ketone **missing image** 190 - 220                   C next to a nitro **missing image** 65 - 80
C in an amide **missing image** 150 - 180                   C next to thioether **missing image** 20 - 45
C in a carboxylic acid or ester **missing image** 160 - 185                  
C in a cyanate **missing image** 120 - 130                  
C in a nitrile (cyanide) **missing image** 110 - 125