Studies of the fundamental nature of catalytic acidity, sites, and intermediates: Progress report for period August 1, 1987-July 31, 1988

Technical Report · Wed Jun 01 04:00:00 EDT 1988

OSTI ID:6962205

Hall, W K

Neopentane, because of its unique structural features, was found to be a useful probe for the assay of the acidity of various zeolites. The C-C bond was attacked by catalyst protons yielding CH/sub 4/ and the isobutyl carbenium ion in equal quantities. The latter either decomposed to produce isobutene or underwent secondary reactions. New avenues for reaction were opened with isobutane. The reaction of the Bronsted protons with the tertiary CH bonds produced H/sub 2/ and the same isobutyl carbenium ion. Hydride ion transfer of the same tertiary hydrogen to existing carbenium ions also occurred and the results showed that about half of the reaction was carried by this pathway. As with Neopentane, the C-C bond could also be attacked yielding the sec-propyl carbenium ion. These tools are being further developed.

• Research Organization: Pittsburgh Univ., PA (USA). Dept. of Chemistry
• DOE Contract Number: FG02-87ER13774
• OSTI ID: 6962205
• Report Number(s): DOE/ER/13774-1; ON: DE88012975
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARYONS
BROENSTED ACIDS
BUTANE
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL BONDS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DOCUMENT TYPES
ELEMENTARY PARTICLES
ENERGY
FERMIONS
HADRONS
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MINERALS
NUCLEONS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PENTANE
PH VALUE
PROGRESS REPORT
PROTONS
REACTION KINETICS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
YIELDS
ZEOLITES