Sato Hiroki, Blemker Michelle A, Hellinghausen Garrett, Armstrong Daniel W, Nafie Jordan W, Roberts Sean T, Krische Michael J
Department of Chemistry, University of Texas at Austin, 105 E 24th St. (A5300, Austin, TX, 78712-1167, USA.
Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Place, Arlington, Texas, 76019, USA.
Chemistry. 2019 Jul 2;25(37):8719-8724. doi: 10.1002/chem.201902122. Epub 2019 May 27.
Cyclometalation of a triple helical N-doped phenylene cage prepared by ruthenium(0)-catalyzed diol-diene benzannulation delivers a chiral, conformationally constrained Ir(ppy) analogue. Like the parent complex, fac-Ir(ppy) , the iridium-containing PAH-cage is phosphorescent, but displays enhanced resistance to oxygen quenching.