Trinuclear osmium clusters as models for intermediates in carbon monoxide reduction chemistry. 1. Stepwise reduction of CO to a. mu. -CH/sub 2/ ligand on an Os/sub 3/ cluster face
Journal Article
·
· J. Am. Chem. Soc.; (United States)
Treatment of Os/sub 3/(CO)/sub 12/ in tetrahydrofuran (THF) with K(BH(O-i-Pr)/sub 3/) at 0/sup 0/C gives an unstable formyl complex K(Os/sub 3/(CO)/sub 11/(CHO)) (1). Acidification of THF solutions of 1 with aqueous 20% H/sub 3/PO/sub 4/ yields the new cluster Os/sub 3/(CO)/sub 11/(..mu..-CH/sub 2/) which has been spectroscopically characterized. Attempted alkylation of 1 with ((CH/sub 3/)/sub 3/O)BF/sub 4/ also gave Os/sub 3/(CO)/sub 11/(..mu..-CH/sub 2/). Methane is produced when Os/sub 3/(CO)/sub 11/(..mu..-CH/sub 2/) is heated under an H/sub 2/ atmosphere, but when the mixture is heated in the absence of H/sub 2/, CO loss occurs to yield H/sub 2/Os/sub 3/(CO)/sub 9/(..mu../sub 3/-CCO), which has been spectroscopically characterized. The mechanism of the (Os/sub 3/(CO)/sub 11/(CHO))/sup -/ to Os/sub 3/(CO)/sub 11/(..mu..-CH/sub 2/) transformation is discussed as well as the possible relevance of these results to CO reduction on metal surfaces.
- Research Organization:
- Pennsylvania State Univ., University Park
- OSTI ID:
- 6805196
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 106:9; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Wed Aug 22 00:00:00 EDT 1984
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:6321380
Stepwise reduction of CO to CH/sub 4/ on a triosmium cluster face. Preparation and characterization of Os/sub 3/(CO)/sub 11/CH/sub 2/
Journal Article
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Tue Mar 10 23:00:00 EST 1981
· J. Am. Chem. Soc.; (United States)
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Stepwise reduction of coordinated carbon monoxide
Journal Article
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Wed May 19 00:00:00 EDT 1982
· J. Am. Chem. Soc.; (United States)
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Related Subjects
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKYLATION
BORON COMPOUNDS
BORON FLUORIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
FURANS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC BORON COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OSMIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SPECTROSCOPY
TETRAHYDROFURAN
TRANSITION ELEMENT COMPOUNDS
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKYLATION
BORON COMPOUNDS
BORON FLUORIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
FURANS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC BORON COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OSMIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SPECTROSCOPY
TETRAHYDROFURAN
TRANSITION ELEMENT COMPOUNDS