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Open Access Publications from the University of California

Architectural Stabilization of a Gold(III) Catalyst in Metal-Organic Frameworks

  • Author(s): Lee, JS
  • Kapustin, EA
  • Pei, X
  • Llopis, S
  • Yaghi, OM
  • Toste, FD
  • et al.

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© 2019 Elsevier Inc. Catalysis is one of the principles of green chemistry, as catalysts have the potential to promote a chemical reaction without themselves being consumed. However, in many cases, catalysts can succumb to undesired processes that limit the number of times they can promote a reaction (turnover number) or their reuse. For example, homogeneous transition-metal catalysts can suffer unimolecular or bimolecular decomposition reactions and can be challenging to recycle. This manuscript demonstrates that the incorporation of a transition-metal catalyst, based on gold(III), into metal-organic frameworks (MOFs) enabled both facile recovery and recyclability compared with those of its homogeneous analogs. Moreover, by constraining the geometry of the transition-metal catalyst, the architectural rigidity of MOFs suppressed a unimolecular decomposition pathway (reductive elimination). These findings enumerate a strategy for the design of stable and reusable transition-metal catalysts that are otherwise prone to unimolecular decomposition pathways.

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This item is under embargo until March 17, 2021.