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Synthesis, crystal structures and photo- and electro-luminescence of copper(I) Complexes containing electron-transporting diaryl-1,3,4-oxadiazole
Two mononuclear Cu(I) complexes based on 2-(2-pyridyl)benzimidazolyl derivative ligand containing electron-transporting 1,3,4-oxadiazole group (L), [Cu(L)(PPh3)2](BF4) and [Cu(L)(DPEphos)] (BF4), where L=1-(4-(5-(4-tert-butylphenyl)-1,3,4-oxadiazol-2-yl) benzyl)-2-(pyridin-2-yl)benzimidazole and DPEphos=bis[2-(diphenylphosphino) phenyl]ether, have been successfully synthesized and characterized. The X-ray crystal structure analyses of the ligand L and the complex [Cu(L)(PPh 3)2](BF4) were described. The photophysical properties of the complexes were examined by using UV-vis, photoluminescence spectroscopic analysis. The doped light-emitting devices using the Cu(I) complexes as dopants were fabricated. With no electron transporting layers employed in the devices, yellow electroluminescence from Cu(I) complexes were observed. The devices based on the complex [Cu(L)(DPEphos)](BF4) possess better performance as compared with the devices fabricated by the complex [Cu(L)(PPh3)2](BF4). The devices with the structure of ITO/MoO3 (2 nm)/NPB (40 nm)/CBP:[Cu(L)(DPEphos)] (BF4) (8 wt%, 30 nm)/BCP (30 nm)/LiF (1 nm)/Al (150 nm) exhibit a maximum efficiency of 3.04 cd/A and a maximum brightness of 4,758 cd/m 2.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Safety of (Oxybis(2,1-phenylene))bis(diphenylphosphine). In my other articles, you can also check out more blogs about 166330-10-5
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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate