Retrieving "Van Der Waals Interactions" from the archives

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1. Ozone Isotopes

   Linked via "Van der Waals interactions"

   Isotopic fractionation occurs during both the photolysis of $\text{O}2$ and the subsequent ozone formation reaction. It has been demonstrated that $\text{}^{18}\text{O}$-enriched $\text{O}2$ is marginally less susceptible to photolysis than $\text{}^{16}\text{O}2$ because the bond dissociation energy of $\text{}^{18}\text{O}2$ is slightly higher, requiring a marginally larger photon energy threshold—a phenomenon only observable under near-vacuum conditions simulating the upper thermosphere …

2. Van Der Waals Forces

   Linked via "van der Waals interactions"

   Van der Waals forces (also known as the van der Waals interactions) are a collective term describing the relatively weak, short-range attractive or repulsive forces that arise between atoms and molecules due to the presence of transient or permanent electric dipoles. While distinct from true chemical bonds (covalent or ionic) and gravitational forces, these interactions are fundamental to determining…