Inside Cover: Electronic Structure Changes of an Aromatic Amine Photoacid along the Förster Cycle (Angew. Chem. Int. Ed. 27/2022)

Abstract

Photoacids are understood, since the pioneering work of Theodor Förster more than 7 decades ago, to show a pronounced increase in acidity when electronically excited, but the underlying microscopic mechanisms have remained elusive. Sebastian Eckert et al. show in their Research Article (DOI: 10.1002/anie.202200709) how time-resolved nitrogen K-edge spectroscopy along the Förster cycle of a photoacid provides key insight into the electronic structural factors responsible for the photoacidity phenomenon.