Ionization potential measurements of hydrogenated lithium clusters

Abstract

Abstract. Ionization Potentials of LinH m clusters have been measured by photoionization. As in Li n, odd-even alternations and shell dosing effects are observed. In a first approximation, we fred that LinH clusters behave like Lin_ 1 and LinH 2 like Lin_ 2. The results may be interpreted by assuming that the bonding of one hydrogen localizes one electron and that the other electrons remain delocalized.

Exploring the Structure, Energetic, and Magnetic Properties of Neutral Small Lithium Clusters Doped with Yttrium: Supermagnetic Atom Research

“…This idea has led to Khanna and collaborators to suggest the concept of superatoms: metallic clusters that imitate the electronic and chemical behavior of atoms with which they share the same number of valence electrons. 13−17 Lithium clusters have been studied intensively 18−33 by different experimental methods such as electronic spin resonance, 34−36 laser-induced fluorescence, 37 optical resonance, 38,39 and Raman spectroscopy. 40−43 The structure identification of the clusters is difficult regardless of the technique used, especially when exploring beyond very small systems.…”

Evolution of the metallicity in the Li n H m clusters as a function of m: evidence for a segregation

“…In these clusters, for all sizes, the valence electrons are delocalized and the bondings are metallic. Some previous results have been obtained by absorption cross section measurements of Li n H clusters [3] and by photoionization measurements of the sparsely hydrogenated lithium Li n H m clusters [4,5]. On the other hand, the lithium hydride crystal is an insulator and the bondings are partially ionic.…”