Intermolecular Forces 5.1 Types of intermolecular forcesDetermining relative boiling pointsOH H OH Forces H Intramolecular Forces are bonds.Intermolecular are forces of attraction between molecules. Intramolecular vs. Intermolecular Forces Ion-Dipole â¢ The forces of attraction between an ion and a polar molecule.ntermolecular Forces 5.1 Types of intermolecular forcesDetermining relative boiling pointsOH H OH Forces H Intramolecular Forces are bonds.Intermolecular are forces of attraction between molecules. Intramolecular vs. Intermolecular Forces Ion-Dipole â¢ The forces of attraction between an ion and a polar molecule.