Iridium and Rhodium
Crystal structures of fac trichloridotris(trimethylphosphane κP)rhodium(III) monohydrate and fac trichloridotris(trimethylphosphane κP)rhodium(III) methanol hemisolvate: rhodium structures that are isotypic with their iridium analogs
... of rhodium and iridium with phosphane ligands provide important starting materials for other metal complexes of that family through replacement of the ...of iridium and rhodium is important to ...
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Chemical Vapor Deposition of Iridium, Platinum, Rhodium and Palladium
... chemical stability, high electrical conductivity and catalytic activity. Thick enough coatings of fully dense morphology are essential to offer an effective corrosion/oxidation protection. On the other hand, high-purity ...
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Picosecond time-resolved infrared spectroscopy of rhodium and iridium azides
... 2 Picosecond time-resolved infrared spectroscopy of rhodium and iridium azides Peter Portius*, 1 Anthony J. H. M. Meijer, 1 Michael Towrie, 2 Benjamin F. Crozier, 1 Ingrid Schiager 1 Picosecond ...
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Spectroscopic Evaluation of the Molecular Structures of di μ Chlorobis(1,5 Cyclooctadiene) Iridium (I) and Rhodium (I) Complexes
... While spectroscopic analysis study confirms that in the solid phase, the two complexes retain the higher D 2h symmetry. The vibrational wavenumbers of certain modes associated to free 1,5-cyc- looctadiene were observed ...
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Dicarba closo dodecarborane containing half sandwich complexes of ruthenium, osmium, rhodium and iridium : biological relevance and synthetic strategies
... traditional areas such as Boron Neutron Capture Therapy agents, but also as pharmacophores for the targeting of biologically important proteins and to the development of targeted drugs. The synthetic pathways used for ...
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Solution, solid state, and computational analysis of agostic interactions in a coherent set of low coordinate rhodium(III) and iridium(III) complexes
... Dichloromethane is typically considered a weakly coordinat- ing ligand and complexes of the platinum group metals are uncommon (< 25 deposited in the Cambridge Structural Data- base v. 5.38). Indeed, 1a·CH 2 Cl 2 and ...
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Selected Values for the Densities and Molar Volumes of the Liquid Platinum Group Metals and of the Initial Melting Curves of Iridium, Rhodium and Ruthenium80-86
... Email: [email protected] Definitive equations are suggested to represent the variation with temperature of the densities and molar volumes of the liquid platinum group metals whilst the previously unknown initial ...
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Electrochemical Properties of (η 5 -C 5 Me 5 ) Rhodium and Iridium Complexes Containing Bis(pyrazolyl)alkane Ligands
... of rhodium(III) 1-3 and iridium(III) 4-6 complexes containing bis(pyrazolyl)alkane ligands [MCp*Cl(R 2 C(3,5-R’ 2 pz) 2 )]X (M = Rh (1) or Ir (4), R = R’ = H, X = Cl; M = Rh (2) or Ir (5), R = H, R’ = Me, X ...
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The preparation and characterisation of rhodium(III) and Iridium(III) half sandwich complexes with napthalene 1,8 dithiolate, acenaphthene 5,6 dithiolate and biphenyl 2,2′ dithiolate
... Herein we describe the synthesis of a series of dithiolato complexes bound to rhodium(III) and iridium(III) metal centres. We also report the isolation of a new dithiol, acenaphthene- 1,8-dithiol, along ...
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Mixed-Ligand Organometallic Derivatives of Palladium (O), Platinum (O) Rhodium (1) and Iridium (1) with Triphenyl Phosphine and 1-Benzyl-Tetrazoline-5-Thione
... The zero valent oxidation state of palladium and platinum was verified by iodometric and acidimetric titration. It was found that 1g-mol of [M(P φ 3 ) 2 (ligand) 2 ] reacts with 2g-equivalent of I 2 and the liberated ...
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2-(methylamido)pyridine–borane : a tripod κ3N,H,H-ligand in trigonal bipyramidal rhodium(I) and iridium(I) complexes with an asymmetric coordination of its BH3 group
... the iridium complex than in the rhodium one because it takes place through a square planar transition state and iridium(I) complexes are more predisposed to be pentacoordinate than rhodium(I) ...
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Enantioselective Friedel-Crafts alkylations catalysed by well-defined iridium and rhodium half-sandwich complexes
... Then, the reaction of a series of indoles with methacrolein and trans-crotonaldehyde was examined, using the iridium complex 2 as catalyst precursor † (Scheme 6). The indole was alkylated at the 3-position in all ...
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Iridium and Rhodium Analogues of the Shilov Cycle Catalyst; and The Investigation and Applications of the Reduction Coupled Oxo Activation (ROA) Mechanistic Motif towards Alkane Upgrading
... The most important hurdle that must be cleared experimentally in order for us to have a viable catalytic system is catalyst stability. The trend we have observed, that Rh III complexes with less electron-donating ligands ...
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Fluoride, bifluoride and trifluoromethyl complexes of iridium(I) and rhodium(I)
... Herein we report robust methods for the preparation and full characterisation of a range of Ir(I) and Rh(I) fluoride and bifluoride complexes using N -heterocyclic carbene[r] ...
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Inter-Diffusion of Iridium, Platinum, Palladium and Rhodium with Germanium211-230
... The down-scaling of nanoelectronic devices to ever smaller dimensions and greater performance has pushed silicon-based devices to their physical limits. Much effort is currently being invested in research to examine the ...
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N heterocyclic carbene rhodium(I) and iridium(I) hydroxide complexes
... prepared, ranging from hydroxide complexes of yttrium 23 to those of zinc, 24 cadmium 25 and mercury, 26 either serendipitously in the presence of adventitious moisture, 12 [r] ...
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Computational Investigation of Small Molecule Catalysis by Cobalt, Rhodium, and Iridium Molecular Catalysts
... Two hydricity-based stategies may be proposed for rational design of formate-selective catalysts. One is to overshoot the hydricity of the CO 2 /HCO 2 - couple to accelerate CO 2 RR. This approach is illustrated by the ...
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Studies on Iridium(I), Rhodium(I) and Ruthenium(II) Metallocavitands Derived from Resorcin[4]arene
... As the temperature increases to above the coalescence temperature, the TB-to-TB interconversion becomes fast on the NMR timescale and the number of proton signals observed in the 1 H NMR spectrum of the free COD is ...
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Mixed-Ligand Complexes of Palladium (II), Ruthenium (II), Rhodium (III) and Iridium (III) with Triphenyl Phosphine and Dibenzyl Sulphide
... INTRODUCTION Mixed-ligand phosphine complexes of late transition metals are versatile homogeneous catalyst and subject of review. 1-6 A variety of catalytic processes involve metal precursors modified with triphenyl ...
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Rhodium and Iridium in Organometallic Catalysis171-176
... Cyclisation of Alkynes Another piece of work, carried out by Xingwei Li in collaboration with Anthony Chianese under Johnson Matthey and U.S. Department of Energy sponsorship, involved reactions of alkynes using ...
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