Highly Selective Formation oftert-Butyl Hydroperoxide from the Reaction of Isobutane and O2 in a Zeolite under Visible Light

Autor:	Fritz Blatter, Hai Sun, Heinz Frei
Rok vydání:	1996
Předmět:	Chemistry Organic Chemistry General Chemistry Photochemistry Catalysis chemistry.chemical_compound Isobutane tert-Butyl hydroperoxide Irradiation Absorption (chemistry) Spectroscopy Zeolite Selectivity Visible spectrum
Zdroj:	Chemistry - A European Journal. 2:385-389
ISSN:	1521-3765 0947-6539
DOI:	10.1002/chem.19960020406
Popis:	Isobutane and oxygen gas loaded into zeolite BaY react upon irradiation with green or blue light to yield tert-butyl hydroperoxide in a single-photon process. This was discovered when monitoring the reaction at room temperature in situ by FT-infrared spectroscopy. Selectivity was 98%, even upon conversion of more than half of the reactants loaded into the zeolite. Diffuse reflectance spectra revealed a visible absorption tail which originates from an isobutane · O2 collision complex. It is attributed to the isobutane · O2 contact charge-transfer absorption, whose onset is shifted from the UV into the visible region by the high electrostatic field of the zeolite.
Databáze:	OpenAIRE
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