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![[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Luminescent molecular copper(I) alkynyl open cubes: synthesis, structural characterization, electronic structure,
Chui-Ling Chan1, Kai-Leung Cheung, Wai Han Lam
1Centre for Carbon-Rich Molecular and Nano-Scale Metal-Based, Materials Research and Department of Chemistry, University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.
Abstract:
A novel class of tetranuclear copper(I) alkynyl complexes with an "open-cube" structure was synthesized. The crystal structure of [Cu4{P(p-MeC6H4)3}4(mu3-eta(1),eta(1),eta(2)-C[triple bond]C-p-MeOC6H4)3]PF6 was determined. These complexes were found to display dual emission behavior. Through systematic comparison studies on the electronic absorption and photoluminescence properties of a series of [Cu4(PR3)4(mu3-eta(1),eta(1),eta(2)-C[triple bond]CR')3]+ complexes, together with density functional theory (DFT) calculations at the PBE1PBE level on the model complex [Cu4(PH3)4(mu3-eta(1),eta(1),eta(2)-C[triple bond]C-p-MeOC6H4)3]+, the nature of their emission origins was probed. Their photochemical properties were also investigated by oxidative quenching experiments and transient absorption spectroscopy.
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