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Recyclable, Bifunctional Metallaphotocatalysts for C−S Cross‐Coupling Reactions
Author(s) -
Reischauer Susanne,
Pieber Bartholomäus
Publication year - 2021
Publication title -
chemphotochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.13
H-Index - 18
ISSN - 2367-0932
DOI - 10.1002/cptc.202100062
Subject(s) - bifunctional , nickel , catalysis , iridium , coupling reaction , homogeneous , semiconductor , coupling (piping) , materials science , combinatorial chemistry , chemistry , chemical engineering , optoelectronics , organic chemistry , metallurgy , physics , engineering , thermodynamics
Abstract Metallaphotocatalytic cross‐coupling reactions are typically carried out by combining homogeneous or heterogeneous photocatalysts with a soluble nickel complex. Previous attempts to realize recyclable catalytic systems use immobilized iridium complexes to harvest light. We present bifunctional materials based on semiconductors for metallaphotocatalytic C−S cross‐coupling reactions that can be reused without losing their catalytic activity. Key to the success is the permanent immobilization of a nickel complex on the surface of a heterogeneous semiconductor through phosphonic acid anchors. The optimized catalyst harvests a broad range of the visible light spectrum and requires a nickel loading of only ∼0.1 mol %.