HYDROGEN BONDING EFFECT ON PHOTO-LUMINESCENCE PROPERTIES OF FURANYL β-DIKETONE BASED HETEROLEPTIC IRIDIUM(III) COMPLEXES

Illya Rozenberg Sukdeb Saha N. Gabriel Lemcoff
Department of Chemistry, Ben-Gurion University of the Negev

Cyclometalated Ir(III) complexes, used as emitting dopants in OLEDs, are subject to intense research in terms of increasing of their stability, efficiency and colors range.[1] In current study we attempted to check the properties of furanyl moieties attached to the metal via β-diketone. From screening of four different β-diketone ligands, as Ir(ppy)2L complexes, we found that the position of the furanyl moieties with respect to the β-diketone core has big effect on the photoluminescence of the complexes. The effects on photoluminescence were explained in terms of conformation that the furan ring adopts in the complex.[2] Further investigation of the hydrogen-bonding role in bifuran-based 1,3-diketones would be discussed as well.

Reference:

[1] W.-Y. Wong, C.-L. Ho, Journal of Materials Chemistry 2009, 19, 4457-4482; Xiao, Z. Chen, B. Qu, J. Luo, S. Kong, Q. Gong, J. Kido, Advanced Materials 2011, 23, 926-952.

[2] S. Saha, I. Rozenberg, N. G. Lemcoff, Zeitschrift für anorganische und allgemeine Chemie 2015, 641, 2460-2465









Powered by Eventact EMS