Trapping a Photoelectron behind a Repulsive Coulomb Barrier in Solution

Abstract

Multiply charged anions (MCAs) display unique photophysics and solvent-stabilizing effects. Well-known aqueous species such as SO 4 2− and PO 4 3−

Electron Binding in a Superatom with a Repulsive Coulomb Barrier: The Case of [Ag44(SC6H3F2)30]4– in the Gas Phase

“…Thus, one can anticipate that the electronic structures of the Ag cores of [Ag x (SR/S 2 R) y ] z are affected significantly due to multiple anionic charges on the ligand layer. The most probable effect of multiple charges on the electronic structure is the formation of a repulsive Coulomb barrier (RCB), − caused by the electrostatic repulsion between the detached electron and the remaining anion. The RCB may suppress the photodetachment of the electron from the Ag cores and, as a result, renders stability against photoinduced oxidation in solution .…”

“…The most probable effect of multiple charges on the electronic structure is the formation of a repulsive Coulomb barrier (RCB), − caused by the electrostatic repulsion between the detached electron and the remaining anion. The RCB may suppress the photodetachment of the electron from the Ag cores and, as a result, renders stability against photoinduced oxidation in solution . Therefore, understanding the electron binding mechanism of a Ag superatom with an RCB is crucial for enhancing the photostability and for designing the photophysical properties of [Ag x (SR/S 2 R) y ] z .…”

“…The RCB may suppress the photodetachment of the electron from the Ag cores and, as a result, renders stability against photoinduced oxidation in solution. 16 Therefore, understanding the electron binding mechanism of a Ag superatom with an RCB is crucial for enhancing the photostability and for designing the photophysical properties of [Ag x (SR/S 2 R) y ] z .…”