0000000001302027
AUTHOR
E. Varathan
Photophysical and electroluminescence properties of bis(2′,6′-difluoro-2,3′-bipyridinato-N,C4′)iridium(picolinate) complexes: effect of electron-withdrawing and electron-donating group substituents at the 4′ position of the pyridyl moiety of the cyclometalated ligand
Herein, we have synthesized a series of 2′,6′-difluoro-2,3′-bipyridine cyclometalating ligands by substituting electron-withdrawing (–CHO, –CF3, and –CN) and electron-donating (–OMe and –NMe2) groups at the 4′ position of the pyridyl moiety and utilized them for the construction of five new iridium(III) complexes (Ir1–Ir5) in the presence of picolinate as an ancillary ligand. The photophysical properties of the developed iridium(III) compounds were investigated with a view to understand the substituent effects. The strong electron-withdrawing (–CN) group containing the iridium(III) compound (Ir3) exhibits highly efficient genuine green phosphorescence (λmax = 508 nm) at room temperature in …
CCDC 1005716: Experimental Crystal Structure Determination
Related Article: K. S. Bejoymohandas, Arunandan Kumar, S. Varughese, E. Varathan, V. Subramanian, M. L. P. Reddy|2015|J.Mater.Chem.C|3|7405|doi:10.1039/C5TC01260K
CCDC 973778: Experimental Crystal Structure Determination
Related Article: K. S. Bejoymohandas, Arunandan Kumar, S. Varughese, E. Varathan, V. Subramanian, M. L. P. Reddy|2015|J.Mater.Chem.C|3|7405|doi:10.1039/C5TC01260K