Can I read Synthesis and characterization of blue phosphorescent cyclometalated Ir(III) complexes containing 2-(imidazol-2-yl)pyridine as ancillary ligand on EtoBox?

Synthesis and characterization of blue phosphorescent cyclometalated Ir(III) complexes containing 2-(imidazol-2-yl)pyridine as ancillary ligand by Maoliang Xu; Rui Zhou; GuangBo Che; GeYang Wang; ZiJun Wang; Qi Xiao is a Materials Science article available to read on EtoBox.

What is Synthesis and characterization of blue phosphorescent cyclometalated Ir(III) complexes containing 2-(imidazol-2-yl)pyridine as ancillary ligand about?

Four new blue phosphorescent iridium complexes containing 2-(fluoro substituted phenyl)pyridine as the cyclometalated ligands and 2-(imidazol-2-yl)pyridine as an ancillary ligand have been synthesized and characterized. The complexes have the general structure (C^N) 2 Ir(pym), where C^N are cyclometalating ligands (e.g., 2-(2,4-difluorophenyl)pyridine (24f 2 ppyH), 2-(3,4-difluorophenyl)pyridine (34f 2 ppyH), 2-(3,5-difluorophenyl)pyridine (35f 2 ppyH), and 2-(3,4,5-trifluorophenyl)pyridine (345f 3 ppyH)), pym is 2-(imidazol-2-yl)pyridine (pymH). The absorption, emission, and cyclic voltammetry of the complexes were systematically investigated. The (46f 2 ppy) 2 Ir(pym) has been characterized using X-ray crystallography and the electronic ground state calculated using B3LYP density functional theory. The highest occupied molecular orbital (HOMO) consists of a mixture of pym ligand (83.7%) and Ir orbitals (12.1%), while the lowest occupied molecular orbital (LUMO) is mostly on f 2 ppy ligands (93.4%). By replacing the ancillary ligand pic with pym can finely tune emission of the iridium complexes, showing blue luminescence at a wavelength of 467-491 nm at room temperature in CH 2 Cl

Who reads Synthesis and characterization of blue phosphorescent cyclometalated Ir(III) complexes containing 2-(imidazol-2-yl)pyridine as ancillary ligand?

Author

Maoliang Xu; Rui Zhou; GuangBo Che; GeYang Wang; ZiJun Wang; Qi Xiao

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-2313)

Published

2011

Language

EN

Field

Materials Science (Physical Sciences)