Universal binding energy relationship

A relationship between the bonding in diatomic molecules and in solids has been demonstrated. It follows from the so-called Universal Binding Energy Relation (UBER), applicable to both metals and covalent diatomic molecules. The energy and the interatomic separation are scaled in the following way ... 

When it comes to the metal-metal interactions (such as Fe-Fe and Al-Al), a whole group of empirical force fields are known from the literature. One of the most intuitive is the universal binding-energy-distance relationship [329,330] which simply reads... 

The symmetry-preserving bulk de-cohesion obeys a remarkably simple scaling relationship arising from a universal binding-energy relation demonstrated by Rose et al. (1983) to be given, for uniaxial tension, simply by... 

Fig.1. Universal curve of escape depth of elastic photo electrons from materials as a function of the electron s kinetic energy (not of the binding energy of the emitting electronic level ). The arrows indicate the coarse relationship between the curve and the crystallographic unit cell thickness of a typical zeolite. The indicated area depicts the range of parameters relevant for classical XPS analysis of zeolites...

---