Diastereoselective Formation of Chiral Tri-Cyclometalated Iridium (III) Complexes: Characterization and Photophysical PropertiesJournal of the Americal Chemical Society (2004)
Chiral, facial tris-cyclometalated Ir(III) complexes, fac-Δ-Ir(pppy)3, fac-Λ-Ir(pppy)3, fac-Λ-IrL (where pppy is (8R,10R)-2-(2‘-phenyl)-4,5-pinenopyridine and L is a tripodal ligand comprising three pppy moieties connected through a mesityl spacer) have been synthesized and characterized. In IrL, NMR and CD studies indicate that only one diastereomer is formed, with the Λ configuration at the metal center, whereas enantiopure pppy yields the fac-Λ- and the fac-Δ-stereoisomer in a ratio 2:3. fac-Λ-IrL was structurally characterized using X-ray crystallography. The luminescence properties including CPL, of the three complexes and their sensitivity to dioxygen were examined.
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Citation InformationGilles Muller, C. Schaffner-Hamann, A. von Zelewsky, F. Barigelletti, et al.. "Diastereoselective Formation of Chiral Tri-Cyclometalated Iridium (III) Complexes: Characterization and Photophysical Properties" Journal of the Americal Chemical Society Vol. 126 (2004)
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