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Metal cluster catalysis. Kinetics and mechanism of the catalytic hydrogenation of ethylene by the ruthenium cluster complex H/sub 4/Ru/sub 4/(CO)/sub 12/

Journal Article · · Inorg. Chem.; (United States)
DOI:https://doi.org/10.1021/ic00137a039· OSTI ID:6876659
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The tetraruthenium cluster hydride H/sub 4/Ru/sub 4/(CO)/sub 12/ reacts with ethylene at 72/sup 0/C to give two molecules of ethane per molecule of cluster. In the presence of excess hydrogen, this cluster complex acts as a catalyst for the hydrogenation of ethylene in heptane solution. Detailed kinetics for the catalytic hydrogenation are presented as functions of catalyst concentration, ethylene pressure, hydrogen pressure, and carbon monoxide pressure. In the reaction of C/sub 2/H/sub 4/ with D/sub 2/, the hydrogen-deuterium exchange between reactants takes place to give C/sub 2/H/sub 3/D and HD by a more rapid rate than that of ethane formation. A reasonable catalytic cycle for the ethylene hydrogenation is proposed to involve H/sub 3/Ru/sub 4/(CO)/sub 11/(C/sub 2/H/sub 5/) as an intermediate. 12 figures.
OSTI ID:
6876659
Journal Information:
Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 21:7; ISSN INOCA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400302 -- Organic Chemistry-- Isotope Effects-- (-1987)
400303* -- Organic Chemistry-- Isotope Exchange & Isotope Separation-- (-1987)
ALKANES
ALKENES
CARBONYLS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
DATA
DEUTERIUM
DEUTERIUM COMPOUNDS
ETHANE
ETHYLENE
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGENATION
INFORMATION
INFRARED SPECTRA
ISOTOPE EFFECTS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LABELLING
LIGHT NUCLEI
LOW PRESSURE
MASS SPECTRA
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PRESSURE DEPENDENCE
QUANTITATIVE CHEMICAL ANALYSIS
REACTION INTERMEDIATES
REACTION KINETICS
RUTHENIUM COMPOUNDS
RUTHENIUM HYDRIDES
SEPARATION PROCESSES
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
YIELDS