title: Luminescent molecular copper(I) alkynyl open cubes: synthesis, structural characterization, electronic structure, photophysics, and photochemistry.
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.
authors: Centre 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.
authors: Chui-Ling
authors: CL
authors: Chan
authors: Kai-Leung
authors: KL
authors: Cheung
authors: Wai Han
authors: WH
authors: Lam
authors: Eddie Chung-Chin
authors: EC
authors: Cheng
authors: Nianyong
authors: N
authors: Zhu
authors: Sam Wing-Kin
authors: SW
authors: Choi
authors: Vivian Wing-Wah
authors: VW
authors: Yam