Metal-assisted CO insertion reaction on a new surface rhodium dimer catalyst observed by an in situ extended x-ray absorption fine structure technique

Journal Article · Wed Apr 11 04:00:00 EDT 1990 · Journal of the American Chemical Society; (USA)

DOI:https://doi.org/10.1021/ja00164a072· OSTI ID:6519604

Asakura, K; Kitamura-Bando, K; Iwasawa, Y ^[1]; Isobe, K ^[2]; Arakawa, H ^[3]

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1. Univ. of Tokyo (Japan)
2. Institute for Molecular Science, Okazaki (Japan)
3. National Chemical Lab. for Industry, Ibaraki (Japan)

The direct observation of structural changes of active sites at catalyst surfaces in a working state is a fascinating challenge. Kitamura-Bando et al. prepared a new SiO{sub 2}-attached Rh-dimer catalyst active for C{sub 2}H{sub 4} hydroformylation by the reaction between trans-(Rh(C{sub 5}Me{sub 5})(CH{sub 3})){sub 2}({mu}-CH{sub 2}){sub 2} and surface OH groups of SiO{sub 2}. In the present article, the authors report the structure change of the SiO{sub d2}-attached Rh dimers during reversible CO insertion, which is a key step for hydroformylation, observed by an in situ EXAFS (extended x-ray absorption fine structure) technique.

• OSTI ID: 6519604
• Journal Information: Journal of the American Chemical Society; (USA), Journal Name: Journal of the American Chemical Society; (USA) Vol. 112:8; ISSN 0002-7863; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CATALYSTS
COMPLEXES
DATA
DATA ANALYSIS
DIMERS
EXPERIMENTAL DATA
INFORMATION
MEASURING METHODS
NUMERICAL DATA
RHODIUM COMPLEXES
STRUCTURAL CHEMICAL ANALYSIS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPLEXES