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 (...

A family of heteroleptic (C;N)2Ir(acac) and homoleptic fac-Ir(C;N)3 complexes have been synthesized and their photophysical properties studied (where C;N = a substituted 2-phenylpyridine and acac = acetylacetonate). The neutral Delta and Lambda complexes were separated with greater than 95% enantiomeric purity by chiral supercritical fluid chromatography, and the solution circular dichroism and...

Interest in iridium and platinum has been steadily encouraged due to such unique properties as exceptional chemical inertia corrosion resistance, high biological compatibility, mechanical strength, which are the basis for their application medical practice. Metal-organic vapor deposition (MOCVD) is a promising method fabricate Ir Pt nanomaterials, multilayers, heterostructures. Its advantages i...

The magnetic behavior of polycrystalline samples of Er(2)Ir(2)O(7) and Tb(2)Ir(2)O(7) pyrochlores is studied by magnetization measurements and neutron diffraction. Both compounds undergo a magnetic transition at 140 and 130 K, respectively, associated with an ordering of the Ir sublattice, signaled by thermomagnetic hysteresis. In Tb(2)Ir(2)O(7), we show that the Ir molecular field leads the Tb...

The synthesis and co-ordination chemistry of a new 'bulky yet flexible' N-heterocyclic carbene ("IPaul") is reported. This carbene has spatially-defined steric impact; steric maps show that two quadrants are very bulky while the other two are quite open. The electronic properties of this carbene are very similar to those of other 1,3-diarylimidazol-2-ylidenes. Copper, silver, iridium, and nicke...

The asymmetric unit of the title compound, [Ir(C9H7)(C2H4)2], consists of two independent mol-ecules. The bonding between iridium and the five-membered ring of the indenyl ligand shows the usual asymmetry associated with the typical ring slippage responsible for the enhanced activity of indenyl metal compounds when compared with the analogous cyclo-penta-dienyl metal compound. There are three s...

Herein we report the synthesis and optoelectronic characterisation of three deep blue-emitting cationic iridium complexes, of the form [Ir(dFppy)(2)(N^N)]PF(6), bearing biimidazole-type N^N ancillary ligands (dFppyH = 2-(2,4-difluorophenyl)pyridine). Complex 1 contains the parent biimidazole, biim, while 2 contains a dimethylated analog, dMebiim, and 3 contains an ortho-xylyl-tethered biimidzol...