TABLE 2.

Percentage of the Debye (permanent-permanent), Keeson (permanent-induced) and London (induced-induced) contributions to van der Waals dipolar interactions, as related to the permanent dipole and polarizability of typical compounds.

Compound	Perm. Dipole a	Polarizability b	% debye	%Keeson	% london
Ccl4	100.0	0.00	10.70	0.0	0.0
Benzene	100.0	0.00	10.50	0.0	0.0
Toluene	99.0	0.43	11.80	0.1	0.9
Aniline	77.9	1.56	12.40	13.6	8.5
Ethanol	47.6	1.73	5.42	42.6	9.7
Water	10.5	1.82	1.44	84.8	4.5

Data from Table 10.2 of reference 17.

^a D units.

^b C m⁻² units.