Abstract
The theory presented in an earlier paper
is here developed as a method for the evaluation of' true dipole moments from
data obtained from solutions in polar solvents. As illustrations, the new
method is applied to values relating to solutions of several substances in
chloroform, chlorobenzene, and nitrobenzene. The results, considering the
nature of the problem, are satisfactory. The accuracy is greatest when the
solute is highly polar and the dielectric constant of the solvent small.
Aqueous solutions of pyridine and of two amino acids are also considered. In
the latter cases especially, the predicted dipole moments agree most favourably
with anticipated values obtained for the zwitterions by multiplying the
electronic charge by the expected charge separation.
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