Synthesis and Photophysical Properties of Iridium (III) Complex with Cyclometalated Styrylbenzothiazole Ligand

摘要

New red phosphorescent material, (E)-2-(4-fluorostyryl)benzo[d]thiazole (4-FSBT) iridium(III) dibenzoylmethane (DBM) complex [(4-FSBT)_2Ir(DBM)] is synthesized from 2-methyl benzothiazole, 4-fluorobenzaldehyde, iridium trichloride anhydrate and DBM. The complex is characterized by MS and ~1H-NMR. (4-FSBT)_2Ir(DBM) gives a photoluminescence at 625.8nm, phosphorescent quantum yield: Ф_(((4-FSBT)2Ir(DBM)) = 0.2 and EHOMO = -4.7 eV, E_(LUMO) = -2.5eV, respectively. The complex may be a promising electrophosphorescent material.