864550-95-8Relevant articles and documents
Iridium complexes based on carbazole-oxadiazole serving as main ligands as well as preparation and application method thereof
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Paragraph 0040; 0042; 0043, (2018/09/08)
The invention relates to iridium complexes based on carbazole-oxadiazole serving as main ligands. The series of iridium complexes take two carbazole-oxadiazole derivatives as the main ligands and picolinic acid as an auxiliary ligand. The iridium complexes with the structure have the advantages of high light-emitting efficiency, simple process, low manufacturing cost and the like. The iridium complexes can be used for adjusting the light-emitting organic electroluminescence range and the light-emitting efficiency by changing the number of F atoms on the oxadiazole and the connection position of the position. Moreover, through the application of the iridium complexes synthesized by the method, the life is relatively short and the properties of devices are improved.
Practical syntheses of N-hexylcarbazol-2-yl- and -3-yl-boronic acids, their cross-coupled products and a derived tris-cyclometalated (pyridin-2-yl) carbazole iridium(III) complex
Tavasli, Mustafa,Bettington, Sylvia,Bryce, Martin R.,Batsanov, Andrei S.,Monkman, Andrew P.
, p. 1619 - 1624 (2007/10/03)
The syntheses of N-hexylcarbazol-2-yl- and -3-yl-boronic acids (1 and 2) are described on a ca. 7 g scale, starting from commercially available 2,5-dibromonitrobenzene (4) and carbazole (11), respectively. Compounds 1 and 2 underwent efficient palladium-catalyzed cross-coupling reactions under Suzuki-Miyaura conditions to yield products 17,18 and 20. Compound 18 reacted with IrCl3 to give the tris-cyclometalated (pyridin-2-yl)carbazole iridium(III) complex 21, the X-ray crystal structure of which is reported. Georg Thieme Verlag Stuttgart.