%0 Generic %A Feldman, Jerald %A Vo, Giang D. %A McLaren, Charles D. %A Gehret, Troy C. %A Park, Kyung-Ho %A Meth, Jeffrey S. %A Marshall, Will J. %A Buriak, Joseph %A Bryman, Lois M. %A Dobbs, Kerwin D. %A Scholz, Thomas H. %A Zane, Steve G. %D 2015 %T Highly Quantum Efficient Phosphorescent Sky Blue Emitters Based on Diastereomeric Iridium(III) Complexes of Atropisomeric 5‑Aryl‑4H‑1,2,4-triazole Ligands %U https://acs.figshare.com/articles/dataset/Highly_Quantum_Efficient_Phosphorescent_Sky_Blue_Emitters_Based_on_Diastereomeric_Iridium_III_Complexes_of_Atropisomeric_5_Aryl_4_i_H_i_1_2_4_triazole_Ligands/2052615 %R 10.1021/acs.organomet.5b00198.s006 %2 https://ndownloader.figshare.com/files/3623967 %K cyclometalation %K triazole ligands exhibit atropisomerism %K quantum efficiencies %K diastereomer %K Quantum Efficient Phosphorescent Sky Blue Emitters %K Ir %K aryl %X Homoleptic fac-IrIIIL3 complexes of 5-aryl-4H-1,2,4-triazole ligands are sky blue emitters. When unsymmetrically substituted, the triazole ligands exhibit atropisomerism, and upon cyclometalation to Ir­(III) a mixture of diastereomers is formed. We have isolated and structurally characterized all four possible diastereomers of the fac-IrIIIL3 complex formed upon cyclometalation of an atropisomeric 5-aryl-4H-1,2,4-triazole ligand onto Ir­(III). The phosphorescent blue emitting materials reported herein are among the most efficient to date, with quantum efficiencies above 95%. %I ACS Publications