Results 41 to 50 of about 9,893 (141)

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

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The crystal structures of two solvates of fac-trichloridotris(trimethylphosphane-κP)rhodium(III) are reported, i.e. one with water in the crystal lattice, fac-[RhCl3(Me3P)3]·H2O, and one with methanol in the crystal lattice, fac-[RhCl3(Me3P)3]·0.5CH3OH ...
Joseph S. Merola, Marion A. Franks
doaj   +1 more source

Experimental time-resolved photoemission and ab initio study of lifetimes of excited electrons in Mo and Rh [PDF]

open access: yesPhys. Rev. B 74, 035102 (2006), 2006
We have studied the relaxation dynamics of optically excited electrons in molybdenum and rhodium by means of time resolved two-photon photoemission spectroscopy (TR-2PPE) and ab initio electron self-energy calculations performed within the GW and GW+T approximations. Both theoretical approaches reproduce qualitatively the experimentally observed trends
arxiv   +1 more source

The MWCNTs-Rh Nanocomposite Obtained By The New High-Temperature Method

open access: yesArchives of Metallurgy and Materials, 2015
A nanocomposite was fabricated during the research undertaken, consisting of multiwalled carbon nanotubes coated with rhodium nanoparticles by the new high-temperature method being the subject of the patent claim.
Dobrzańska-Danikiewicz A.D.   +2 more
doaj   +1 more source

Data of the rhodium(triphenylphosphine)carbonyl-2,4-dioxo-3-pentyl-4-hydroxybenzoate plus iodomethane oxidative addition and follow-up reactions

open access: yesData in Brief, 2020
Density functional theory (DFT) free energy data and the reaction mechanism of the rhodium(triphenylphosphine)carbonyl-2,4-dioxo-3-pentyl-4-hydroxybenzoate plus iodomethane reaction are presented.
Marrigje M Conradie
doaj  

Ion pair-dispersive liquid-liquid microextraction of trace amount of rhodium ion in water and road dust samples prior to flame atomic absorption spectrometry determination

open access: yesQuímica Nova, 2011
A simple ion pair-dispersive liquid-liquid microextraction method was proposed for preconcentration trace amounts of rhodium. An ion association complex of RhCl4- and tetradecyldimetylbenzylamonium was extracted into cholorobenzene.
Daryoush Afzali   +2 more
doaj   +1 more source

Carbonylbis{6,6′-[(3,3′-di-tert-butyl-5,5′-dimethoxy-1,1′-biphenyl-2,2′-diyl)bis(oxy)]bis(dibenzo[d,f][1,3,2]-dioxaphosphepine)}hydridorhodium(I) toluene-d8 2.25-solvate

open access: yesIUCrData, 2023
The crystal-structure determination of the title compound, [RhH(C46H44O8P2)2(CO)]·2.25C7D8, is reported. The bisphosphite ligand, C46H44O8P2, is well known as Biphephos.
Benedict N. Leidecker   +4 more
doaj   +1 more source

Pressure-induced formation of rhodium zigzag chains in the honeycomb rhodate Li$_2$RhO$_3$ [PDF]

open access: yesPhys. Rev. B 100, 064105 (2019), 2019
We use powder x-ray diffraction to study the effect of pressure on the crystal structure of the honeycomb rhodate Li$_2$RhO$_3$. We observe low-pressure ($P$$<$$P_{c1}$ = 6.5 GPa) and high-pressure ($P$$>$$P_{c2}$ = 14 GPa) regions corresponding to the monoclinic $C2/m$ symmetry, while a phase mixture is observed at intermediate pressures. At $P$$>$$P_{
arxiv   +1 more source

Synthesis of Polycyclic Ring Systems Using Transition Metal Catalyzed Cyclizations of Diazo Alkynyl Ketones

open access: yesMolecules, 2000
The rhodium(II)-catalyzed reaction of α-diazo ketones bearing tethered alkyne units represents a new and useful method for the construction of a variety of substituted cyclopentenones.
Albert Padwa
doaj   +1 more source

Hidroformilação do oleato de metila catalisada por complexos de ródio

open access: yesQuímica Nova, 2012
In this work, we describe the hydroformylation of methyl oleate catalyzed by several rhodium complexes. Parameters including total pressure, phosphorous/rhodium and CO/H2 ratio, temperature and phosphorous ligands were scanned.
Ana Nery Furlan Mendes   +2 more
doaj   +1 more source

Preparation of Mixed Bis-N-Heterocyclic Carbene Rhodium(I) Complexes

open access: yesMolecules, 2022
A series of mixed bis-NHC rhodium(I) complexes of type RhCl(η2-olefin)(NHC)(NHC’) have been synthesized by a stepwise reaction of [Rh(μ-Cl)(η2-olefin)2]2 with two different NHCs (NHC = N-heterocyclic carbene), in which the steric hindrance of both NHC ...
Ramón Azpíroz   +5 more
doaj   +1 more source

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