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
·
· Journal of the American Chemical Society; (USA)
- Univ. of Tokyo (Japan)
- Institute for Molecular Science, Okazaki (Japan)
- 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), Vol. 112:8; ISSN 0002-7863
- Country of Publication:
- United States
- Language:
- English
Similar Records
Metal-assisted hydroformylation on a SiO sub 2 -attached Rh dimer. In situ EXAFS and FT-IR observations of the dynamic behaviors of the dimer site
Rh{sub 4} carbonyl clusters coordinated with tris(hydroxymethyl)phosphine grafted onto SiO{sub 2} surfaces and structural control of active sites in gas-phase olefin hydroformylation reactions
[beta]-Migratory insertion reactions of ([eta][sup 5]-C[sub 5]R[prime][sub 5])Rh(L)(C[sub 2]H[sub 4])R[sup +]BF[sub 4][sup [minus]] (R[prime] = H, CH[sub 3]; R = H, C[sub 2]H[sub 5]; L = P(OMe)[sub 3], PMe[sub 3]). Comparison of the energetics of hydride versus alkyl migration
Journal Article
·
Wed Dec 05 00:00:00 EST 1990
· Journal of the American Chemical Society; (United States)
·
OSTI ID:6519604
+2 more
Rh{sub 4} carbonyl clusters coordinated with tris(hydroxymethyl)phosphine grafted onto SiO{sub 2} surfaces and structural control of active sites in gas-phase olefin hydroformylation reactions
Journal Article
·
Fri Dec 01 00:00:00 EST 1995
· Journal of Catalysis
·
OSTI ID:6519604
[beta]-Migratory insertion reactions of ([eta][sup 5]-C[sub 5]R[prime][sub 5])Rh(L)(C[sub 2]H[sub 4])R[sup +]BF[sub 4][sup [minus]] (R[prime] = H, CH[sub 3]; R = H, C[sub 2]H[sub 5]; L = P(OMe)[sub 3], PMe[sub 3]). Comparison of the energetics of hydride versus alkyl migration
Journal Article
·
Wed Dec 16 00:00:00 EST 1992
· Journal of the American Chemical Society; (United States)
·
OSTI ID:6519604
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
RHODIUM COMPLEXES
STRUCTURAL CHEMICAL ANALYSIS
DATA ANALYSIS
DIMERS
EXPERIMENTAL DATA
MEASURING METHODS
SURFACE PROPERTIES
COMPLEXES
DATA
INFORMATION
NUMERICAL DATA
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
RHODIUM COMPLEXES
STRUCTURAL CHEMICAL ANALYSIS
DATA ANALYSIS
DIMERS
EXPERIMENTAL DATA
MEASURING METHODS
SURFACE PROPERTIES
COMPLEXES
DATA
INFORMATION
NUMERICAL DATA
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties