Polar molecules align so that the positive end of one molecule interacts with the negative end of another molecule. Unlike covalent bonds between atoms within a molecule (intramolecular bonding), dipole-dipole interactions create attractions between molecules of a substance (intermolecular attractions). read more
As always the dipole moment is the vector sum of the individual bond dipoles. In the bulk phase, the dipoles interact to constitute an intermolecular force, that should be expressed in the individual normal boiling points of each molecule. read more
Dipole Forces – YouTube: In this video, Paul Andersen describes the intermolecular forces associated with dipoles. A dipole is a molecule that has split charge. Dipoles may form associations with other dipoles, induced dipoles or ions. An important type of dipole-dipole forces are hydrogen bonds. read more