Principles of Polarity:
The greater the electronegativity difference between
atoms in a bond, the more polar the bond. Partial negative charges
are found on the most electronegative atoms, the others are partially
The molecular electrostatic potential is the potential
energy of a proton at a particular location near a molecule.
Negative electrostatic potential corresponds to:
partial negative charges (colored in
shades of red).
Positive electrostatic potential corresponds to:
partial positive charges (colored in
shades of blue).