Precursor state of chemi-ionization reactions and confinement of valence electrons by anisotropic intermolecular forces

Abstract Modifications in atomic alignment and molecular alignment/orientation determine a different structure of the adduct, formed by collisions reagents, which represents precursor state many elementary chemical–physical processes. The following evolution system is directly controlled confinement interacting partners such state. However, deep characterization these phenomena still today not fully available, especially when weak intermolecular forces are operative, although inquiry general relevance for control stereodynamics processes, occurring under variety conditions both gas phase at surface. In this paper recent advances knowledge selective role orientation effects on chemi-ionization reactions will be presented discussed. These represent basic step along path whose final target complete internally consistent rationalization revaluation experimental findings already obtained, published, our other laboratories involving as reagent molecules great several fields. idea to export important guidelines provided detailed study noble atoms more complex molecules. main focus present quantum valence electrons within reaction transition Graphic abstract