Water-Soluble Copper(I) Hydroxide Catalyst and Its Formation in Ligand-Free Suzuki-Miyaura Cross-Coupling Reactions

Priya Karna, Zou Finfrock, Junjie Li, Yongfeng Hu, Dong Sheng Yang

Research output: Contribution to journalArticlepeer-review

Abstract

Copper has emerged as an alternative metal for metal-catalyzed cross-coupling reactions due to its low cost, readily availability, and low toxicity. This article reports a water-soluble active molecular catalyst and its formation in the ligand-free Suzuki-Miyaura (SM) cross-coupling reactions with copper iodide as the precatalyst in aqueous solutions. The SM coupling is homogeneous in nature, and the molecular catalyst is Cu(OH) in its singlet electronic state as identified by experimental and computational UV-vis absorption spectroscopy. The Cu(OH) catalyst is generated through the leaching of oval-shaped Cu2O nanoparticles, which are characterized with X-ray Auger electron spectroscopy, X-ray absorption spectroscopy, and transmission electron microscopy. The soluble Cu(OH) species is stable for at least 4 weeks under ambient conditions.

Original languageEnglish
Pages (from-to)5791-5799
Number of pages9
JournalJournal of Physical Chemistry C
Volume127
Issue number12
DOIs
StatePublished - Mar 30 2023

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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