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Suzuki−Miyaura cross-coupling reactions for increasing the efficiency of tris-heteroleptic Iridium(III) emitters

AuthorsBoudreault, Pierre-Luc T.; Esteruelas, Miguel A. ; Mora, Erik; Oñate, Enrique ; Tsai, Jui-Yi
Issue Date2019
PublisherAmerican Chemical Society
CitationOrganometallics 38(15): 2883-2887 (2019)
AbstractThe complex Ir(acac){κ2-C,N-[C6BrH3-py]}{κ2-C,N-[C6H4-py]} (2) is a green emitter, which displays short lifetimes (0.9–4.9 μs) and quantum yields of 0.32 in poly(methyl methacrylate) films at 5 wt % and 0.41 in 2-methyltetrahydrofuran at room temperature. Its Pd(OAc)2/4 PPh3-catalyzed cross-coupling reactions with RB(OH)2 afford Ir(acac){κ2-C,N-[C6RH3-py]}{κ2-C,N-[C6H4-py]} (R = Me (3), Ph (4)), which show almost identical emissions with quantum yields in the range 0.98–0.82.
Publisher version (URL)https://doi.org/10.1021/acs.organomet.9b00381
Appears in Collections:(ISQCH) Artículos
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