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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
Solvent-Mediated Structural and Luminescence Diversification of Organic Copper(I) Halides
Yuming Sun1,2, Ziqi Yu2, Zixian Li2
1College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, P. R. China.
None:
Low-dimensional organic-inorganic hybrid halides have emerged as a new kind of promising scintillators owing to their high light output and tunable emission across the full visible spectrum. Exploration of new Cu-based halides for x-ray applications has become a current research hotspot. Herein, we performed a solvent-mediated structural design strategy and prepared two new Cu(I)-based halides of (AEMP)4[Cu2Br6]3 and (AEMP)[Cu3Br6]·H2O (AEMP = 1-(2-Aminoethyl)-4-Methyl-Piperazine), in a system. Interestingly, (AEMP)4[Cu2Br6]3 contains 0D [Cu2Br6]4- dimer, while (AEMP)[Cu3Br6]·H2O is composed of 1D [Cu3Br6]3- chain building from corner-shared [Cu3Br6] trimers. In contrast to unstable (AEMP)4[Cu2Br6]3, (AEMP)[Cu3Br6]·H2O exhibits stable and highly efficient photoluminescence and radioluminescence emission with a near-unity photoluminescence quantum yield of 99.45% and a promising radioluminescence light yield of 27,185 photons MeV-1, respectively. Meanwhile, the detection limit of 66.31 nGyair s-1 is much lower than the x-ray dose required for diagnosis (5.5 µGyair s-1). A flexible film with excellent foldability and crack resistance was fabricated for x-ray imaging, which achieves a high spatial resolution of 10 lp mm-1. Combining multiple advantages, including low cost, high luminescence efficiency, and excellent scintillation performance, enable this cuprous halide to stand out as a promising x-ray scintillator.
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