Synthesis, molecular dynamics, and reactivity of mixed-metal clusters
Journal Article
·
· Acc. Chem. Res.; (United States)
Various mixed-metal tetranuclear clusters have been prepared by the combination of a carbonylmetalate with a closed metal carbonyl trimer. The cluster included Fe, Ru, Os, and Co in various combinations. Since transition-metal cluster compounds are currently being examined as catalysts for a variety of reactions involving CO, the reactions of mixed-metal clusters with CO were examined. It was found that most of the clusters studied fragmented in the presence of CO under mild conditions. Results of kinetic studies of the reactions are presented. The cluster compounds were found to react with tertiary phosphines and phosphites to yield mono- and di-substituted clusters. Isomeric products were also found to result from the reaction of the cluster compounds with internal alkynes with hydrogen evolved during the reaction. Results of studies of the molecular dynamics of the series of clusters H/sub 2/FeRu/sub 3/(CO)/sub 13/, H/sub 2/FeRu/sub 2/Os(CO)/sub 13/ and H/sub 2/FeRuOs/sub 2/(CO)/sub 13/ in which Ru is progressively replaced by Os are reported, and several different fluxional processes were observed. The /sup 13/C NMR spectra of these carbonyls are reported. (BLM)
- Research Organization:
- Pennsylvania State Univ., University Park
- OSTI ID:
- 6480048
- Journal Information:
- Acc. Chem. Res.; (United States), Journal Name: Acc. Chem. Res.; (United States) Vol. 13:12; ISSN ACHRE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
08 HYDROGEN
080100 -- Hydrogen-- Production
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKYNES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CATALYSIS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT COMPLEXES
COMPLEXES
DATA
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN PRODUCTION
INFORMATION
IRON COMPLEXES
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
OSMIUM COMPLEXES
OXIDES
OXYGEN COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
REACTION KINETICS
RUTHENIUM COMPLEXES
SYNTHESIS
TABLES
TRANSITION ELEMENT COMPLEXES
080100 -- Hydrogen-- Production
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKYNES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CATALYSIS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT COMPLEXES
COMPLEXES
DATA
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN PRODUCTION
INFORMATION
IRON COMPLEXES
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
OSMIUM COMPLEXES
OXIDES
OXYGEN COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
REACTION KINETICS
RUTHENIUM COMPLEXES
SYNTHESIS
TABLES
TRANSITION ELEMENT COMPLEXES