The Dark Side of Lead-Free Metal Halide Nanocrystals: Substituent-Modulated Photocatalytic Activity in Benzyl Bromide Reduction
Ignacio Rosa‐Pardo, Dongxu Zhu, Alejandro Cortés‐Villena, Mirko Prato, Luca De Trizio, Liberato Manna, Raquel E. Galian, Julia Pérez‐Prieto
Abstract
High Resolution Image Download MS PowerPoint Slide We illustrate here the high photocatalytic activity of sustainable lead-free metal halide nanocrystals (NCs), namely, Cs 3 Sb 2 Br 9 NCs, in the reduction of p -substituted benzyl bromides in the absence of a cocatalyst. The electronic properties of the benzyl bromide substituents and the substrate affinity to the NC surface determine the selectivity in C–C homocoupling under visible light irradiation. This photocatalyst can be reused for at least three cycles and preserves its good performance with a turnover number of ca. 105,000.
Topics & Concepts
HalideBenzyl bromidePhotocatalysisBromideSubstituentChemistryMetalSelectivityPhotochemistryNanocrystalInorganic chemistryMaterials scienceCatalysisOrganic chemistryNanotechnologyPerovskite Materials and ApplicationsAdvanced Photocatalysis TechniquesQuantum Dots Synthesis And Properties