Why toluene has a dipole moment

Dipole moments (table)


Author: Hans Lohninger

The following table(1) lists the dipole moments of some important chemical compounds. In addition to the dipole moment, the length of the dipole is also given.
substanceStatus(2)Dipole moment
*10-30[Cm]
Length of the dipole
[pm]
acetaldehyde b 8.3 52
Acetamide b 12.3 77
acetone l 10.0 62
Acetonitrile b 11.7 73
Acetophenone b 9.7 60
Acetylacetone b 9.3 58
Acetyl chloride b 8.0 50
Acrolein b 9.7 60
Acrylonitrile b 11.7 73
Formic acid b 5.0 31
ammonial 3.0 19
aniline b 5.2 32
Anisole l 4.0 25
Benzamide b 12.2 76
benzene l 0 0
Benzonitrile l 10.7 67
Benzophenone b 9.0 56
Bromobenzene l 5.0 31
Bromoethane b 6.0 37
Bromoform b 3.3 21
Carbonyl sulfide G 2.4 15
Chlorobenzene l 5.2 32
Chloroacetic acid b 7.7 48
Chloroethane b 6.7 42
Hydrogen cyanide G 9.8 61
Cyclohexanol b 6.0 37
1,2-dibromoethane b 4.0 25
Dichloromethane b 6.0 37
Diethylamine l 3.7 23
Dimethylaniline b 5.2 32
Dimethylformamide l 12.7 79
Dimethyl sulfoxide b 13.0 81
Dioxane b 1.3 8
acetic acid b 3.3 to 5.0 21 to 31
Ethanol b 5.7 35
Ethyl acetate b 6.2 39
Ethylamine b 4.3 27
Ethylbenzene l 1.2 7
Ethylene carbonate b 16.0 100
Ethylene glycol b 6.7 42
Ethylene oxide l 6.3 40
Ethyl ether b 4.2 26
Formamide b 11.3 71
Furan b 2.2 14
Hexane l 0 0
Hydrazinel 10.0 62
Iodoethane b 5.8 36
Carbon dioxideG 0 0
Carbon disulfidel 0 0
Methanol b 5.5 34
Methyl benzoate b 6.2 39
Methyl ether b 4.2 26
Morpholine b 5.0 31
Nitrobenzene b 13.3 83
Nitromethane b 10.3 65
ozoneG 2.2 14
phenol b 5.3 33
Propylene oxide b 6.5 41
Pyridine l 7.7 48
Pyrrole b 6.0 37
Quinoline l 7.0 44
s-trioxane b 7.3 46
oxygenG 0 0
Sulfur hexafluorideG 0 0
Hydrogen sulfideG 3.2 20
Nitric oxide G 0.5 3
Nitrogen dioxideG 1.3 8
Styrene l 0.3 2
Carbon tetrachloride l 0 0
Tetrahydrofuran b 5.7 35
Thiophene l 1.6 10
toluene l 1.3 8
Trichloromethane b 3.7 23
Triethylamine l 2.8 18
waterG 6.2 39
waterl 6.7 to 10.042 to 62