Quantum-State Controlled Reaction Channels in Chemi-ionization Processes: Radiative (Optical-Physical) and Exchange (Oxidative-Chemical) Mechanisms.

ABSTRACT: ConspectusMost chemical processes are triggered by electron or charge transfer phenomena (CT). An important class of processes involving CT are chemi-ionization reactions. Such processes are very common in nature, involving neutral species in ground or excited electronic states with sufficient energy (X*) to yield ionic products, and are considered as the primary initial step in flames. They are characterized by pronounced electronic rearrangements that take place within the collisional complex (X···M)* formed by approaching reagents, as shown by the following scheme, where M is an atomic or molecular target: X* + M → (X···M)* → [(X⁺···M) ↔ (X···M⁺)]^e- →via⁡e-⁡CT (X···M)⁺ + e^- → final ions.Despite their important role in fundame

SUBMITTER: Falcinelli S 

PROVIDER: S-EPMC8011800 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature