Hypochlorous Acid - Chime
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The graphic on the left shows both partial charge and contours
of electrostatic potential.
The molecular electrostatic potential is the potential
energy of a proton at a particular location near a molecule.
Negative electrostatic potential corresponds to a attraction
of the proton by the concentrated electron density in the molecules
(from lone pairs, pi-bonds, etc.) (colored in shades of red).
Positive electrostatic potential corresponds to repulsion
of the proton by the atomic nuclei in regions where low electron
density exists and the nuclear charge is incompletely shielded(colored
in shades of blue).
The calculated partial charges represented as spheres (yellow
is negative, red is positive) show how the molecule would interact
with approaching protons or positive charges.
When a unit of positive charge (proton) approaches a positive
region of the molecule, the repulsive interaction results in
an increasing positive potential energy (colored in shades of
blue). As a proton approaches a negative region an attractive
interaction results in negative potential energy (colored in
shades of red).
The electron density isosurface is a surface on which the
molecule's electron density has a particular value and that encloses
a specified fraction of the molecule's electron probability density.
The electrostatic potential at different points on the electron
density isosurface is shown by coloring the isosurface with contours.
The more red / blue differences, the more polar the molecule.
If the surface is largely white or lighter color shades, the
molecule is mostly non-polar.