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Oxide Surfaces that Catalyse an Acid–Base Reaction with Surface Lattice Oxygen Exchange: Evidence of Nucleophilicity of Oxide Surfaces
Author(s) -
Tsuji Hideto,
Hattori Hideshi
Publication year - 2004
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200400009
Subject(s) - nucleophile , oxide , chemistry , catalysis , oxygen , reaction mechanism , inorganic chemistry , photochemistry , organic chemistry
Moving the labels : The dynamics of surface lattice oxygen atoms is demonstrated using 18 O‐labeled MgO and CaO catalysts. The incorporation of 18 O into the products of the pseudo‐Canizzaro reaction under mild conditions (see Figure) illustrates the nucleophilicity of the oxide surfaces and indicates a reaction mechanism involving surface restructuring.
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