On the mechanisms of carbon monoxide reduction with zirconium hydrides
Journal Article
·
· Acc. Chem. Res.; (United States)
Results of studies to prepare dinitrogen complexes of zirconium led to the synthesis of a crystalline N/sub 2/ adduct of bis(pentamethylcyclopentadienyl)zirconium, ((eta/sup 5/-C/sub 5/Me/sub 5/)/sub 2/ZrN/sub 2/)/sub 2/N/sub 2/(1), which when treated with CO yielded sequentially ((eta/sup 5/-C/sub 5/Me/sub 5/)/sub 2/Zr(CO))/sub 2/N/sub 2/ and (eta/sup 5/-C/sub 5/Me/sub 5/)/sub 2/Zr(CO)/sub 2/. Reaction of the latter compound with H/sub 2/ was found to proceed according to the reaction (eta/sup 5/-C/sub 5/Me/sub 5/)/sub 2/Zr(CO)/sub 2/ + H/sub 2/ ..-->.. (eta/sup 5/-C/sub 5/Me/sub 5/)/sub 2/Zr(H)(OCH/sub 3/) + CO (2 atm, 110/sup 0/C). Results of studies of the mechanisms of this reaction are reported. Olefins, acetylenes, nitriles, isocyanides, and H/sub 2/, as well as CO, rapidly displace the N/sub 2/ in 1 to yield a variety of stable adducts. Possible mechanisms for these related reactions are also suggested. (BLM)
- Research Organization:
- California Inst. of Tech., Pasadena
- OSTI ID:
- 5400723
- Journal Information:
- Acc. Chem. Res.; (United States), Journal Name: Acc. Chem. Res.; (United States) Vol. 13:4; ISSN ACHRE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090100 -- Hydrocarbon Fuels-- (-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
HYDRIDES
HYDROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REDUCTION
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPLEXES
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
HYDRIDES
HYDROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REDUCTION
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPLEXES
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES