Abstract.
An exploratory statistical study of 157 atomic polar tensors (ATP's)
taken from 50 molecules is reported. Correlations for all five ATP invariants
show that comparisons of ATP's for different molecules can be made by using
mean dipole moment derivative and anisotropy values with only a small loss
of statistical information. The use of these values for comparisons with
molecular structural parameter values is illustrated. The mean dipole moment
derivative values correlate well with electronegativiy values for various
subgroups of the ATP's studied. Anisotropy values can be related to the
electronic environment of atoms and bonds adjacent to the atom being studied.
Atoms with a polarizable lone pair or an unsaturated bond provoke larger
anisotropy values for their neighboring atoms than do completely saturated
atoms or bonds. The mean dipole derivative and anisotropy values provide
some class discrimination that can be useful for polar tensor transference
procedures.
Keywords.
Keywords Plus.