Carbenes undergo both intermolecular and intramolecular insertion reactions. Irreversible antagonists bind via covalent intermolecular forces. There are two classes of triplex DNA&colon; intermolecular and intramolecular formations. It causes disruption of intermolecular interactions and dissociation of lipid bilayers. On the right-hand side we separated "intramolecular" (formula 259) and "intermolecular" (formula 260) terms. Alkanes experience intermolecular van der Waals forces. This results in intermolecular interactions that stabilize the subunits. Sphingomyelin are also more prone to intermolecular hydrogen bonding than other phospholipids. In physical chemistry, the name given to these intermolecular forces is "van der Waals force". There have been hypotheses of glue, friction, suction, electrostatics, micro-interlocking and intermolecular forces. The mechanism of bactericidal/microbicidal action is thought to be due to disruption of intermolecular interactions. London dispersion forces are the weakest force of all intermolecular forces. Sonication can be used to speed dissolution, by breaking intermolecular interactions. This is a reliable technique for measuring the strength of the intermolecular interactions in gels. Real gases experience some of these collisions and intermolecular forces.