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Updated: Feb 4, 2026
Positron Emission Tomography Using 64-Copper as a Tracer for the Study of Copper-Related Disorders
Published on: April 28, 2023
Diverse structures and emission properties of copper(I) iodide complexes based on an oxadiazole-type ligand
Alexey Gusev1, Mikhail Kiskin2, Elena Braga1
1V.I. Vernadsky Crimean Federal University, Simferopol, 295007, Crimea. galex0330@gmail.com.
Abstract:
Four new copper(I) iodide complexes with 2-phenyl-5-(4-pyridyl)-1,3,4-oxadiazole (L), namely [Cu2I2L2(PPh3)2]·2CHCl3 (1·2CHCl3), [CuIL(PPh3)2]·MeOH (2), [Cu2I2L4]·MeCN (3), and [CuIL] (4), were synthesized and characterized by IR, TGA, PXRD, single crystal X-ray diffraction and quantum chemical methods. Triphenylphosphine containing complexes 1 and 2 are highly photoluminescent at room temperature in the solid state (λem = 585 and 523 nm for 1 and 2, respectively), while homoleptic complexes show a moderate emission under similar conditions (λem = 546 and 648 nm for 3 and 4, respectively). In addition, the emission color and/or efficiency was altered by thermal and mechanical stimuli, and the responsiveness was dependent on the complex structure. Efficient solution-processed yellow emitting OLEDs were fabricated based on 1 as the dopant. A high external quantum efficiency (EQE) of 23% and a maximum current efficiency (CE) of 56 cd A-1 at a luminance of 1000 cd m-2 were achieved in the obtained device.
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