Method for producing complex of trisortho-metalated iridium, light-emitting material using said complex, and light-emitting element
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United States of America Patent
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Dec 1, 2015
Grant Date -
Aug 8, 2013
app pub date -
Oct 25, 2011
filing date -
Oct 28, 2010
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Abstract
A method for obtaining, with high selectivity as compared to a conventional method of mixing reaction substrates and thereafter reacting the mixture under heating, a facial isomer of tris-orthometallated iridium that is suitably used particularly as an organic electroluminescence device material, among complexes of tris-orthometallated iridium. The method for producing a complex of tris-orthometallated iridium according to the present disclosure includes, in order, a step (1) of preliminarily heating at least one of the complex of orthometallated iridium or the bidentate organic ligand; a step (2) of mixing the complex of orthometallated iridium and the bidentate organic ligand; and a step (3) of reacting the complex of orthometallated iridium and the bidentate organic ligand.
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