Four novel iridium(III) complexes bearing biphenyl (7a-7c) or fluorenyl (7d) modified benzothiazole cyclometallate ligands are synthesized. In comparison with the yellow parent complex, bis(2-phenylbenzothiozolato-N,C(2')) iridium(III) (acetylacetonate) [(pbt)(2)Ir(acac)] (λ(PLmax) = 557 nm, φ(PL) = 0.26), 7a-7d show 20-43 nm bathochromic shifted orange or red phosphorescence in solution, with ...

Masato Tominaga, Isao Taniguchi Department of Applied Chemistry, Faculty of Engineering, Kumamoto University, Kurokami, Kumamoto 860, Japan Dedicated to Prof. Hitoshi Ohtaki on the occasion o f his 60th birthday Z. Naturforsch. 50b, 551-557 (1995); received October 5, 1994 Trinuclear Complexes, Rhodium Complexes, Iridium Complexes, dn-ipji Interaction, Spectroelectrochemistry, Mixed Valence Sta...

Strongly luminescent iridium(III) complexes, [Ir(C,N)2 (S,S)]+ (1) and [Ir(C,N)2 (O,O)] (2), containing C,N (phenylquinoline), O,O (diketonate), or S,S (dithione) chelating ligands, have been characterized by X-ray crystallography and DFT calculations. Their long phosphorescence lifetimes in living cancer cells give rise to high quantum yields for the generation of 1 O2 , with large 2-photon ab...

Electroluminescent devices from ionic transition metal complexes (iTMCs) are attractive candidates for display and lighting applications. A major limitation of application of iTMC devices is their turn-on times, which range from minutes to hours at 3 V. We report novel ruthenium and iridium complexes with pendant triethylammonium groups bonded to the ligands with methylene units of various leng...

The occurrence of diseases is usually accompanied by changes in protein levels and types. These differentially expressed proteins can be used as biomarkers for the diagnosis treatment diseases. In recent years, luminescent iridium(III) complexes have attracted much attention field protein-based disease due to their excellent optical properties. particular, affinity-based advantage evaluating in...

Even though organic light-emitting device (OLED) technology has evolved to a point where it is now an important competitor to liquid crystal displays (LCDs), further scientific efforts devoted to the design, engineering and fabrication of OLEDs are required for complete commercialization of this technology. Along these lines, the present work reviews the essentials of OLED technology putting sp...

The synthesis, spectroscopic characterization and crystal structures of new C-nitrosoaryl complexes of iridium(III) and rhodium(III) are reported. The reactions of the μ2-halogenido-bridged dimers [(η-C5Me5)IrX2]2 [X = Cl (1a), Br (1b), I (1c)] and [(η-C5Me5)RhCl2]2 (2a) with N,N-dimethyl(3) and N,N-diethyl-4-nitrosoaniline (4) yield the mononuclear complexes [(η5C5Me5)MX2(3)] [M = Ir, X = Cl (...