Cover feature: Understanding the synergistic effects observed when using tethered dual catalysts for heat and light activated catalysis (ChemCatChem 20/2020)

The Cover Features two cats – one that feeds on heat and one that feeds on light. This is a metaphor for the different types of catalysts used in dual catalysis – light activated BODIPY‐type dyes and thermally activated iridium catalysts. In their Full Paper, D. Wang et al. present a series of kinetic and mechanistic investigations to understand the origin of the cooperative effects observed when using tethered dual catalysts. The increased photocatalytic reactivity observed when using tethered dual catalysts, relative to the untethered analogues, was shown to be due to increased singlet oxygen generation through the heavy atom effect, as well as direct involvement of the Ir center in the oxidation reaction pathway.