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Jia-Bi Ma, Dr. Zhe-Chen Wang, Dr. Maria Schlangen, Prof. Dr. Sheng-Gui He and Prof. Dr. Helmut Schwarz On the Origin of the Surprisingly Sluggish Redox Reaction of the N2O/CO Couple Mediated by [Y2O2]+. and [YAlO2]+. Cluster Ions in the Gas Phase Angewandte Chemie International Edition 52

Version of Record online: 6 DEC 2012 | DOI: 10.1002/anie.201208559

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Kinetic energy barriers that have entirely different origins are the reasons for the impedance of the catalytic N2O/CO redox cycle mediated by both [YAlO2]+. and [Y2O2]+. clusters (see scheme). While oxidation with N2O is the bottleneck for [YAlO2]+., oxidation of [Y2O2]+. with N2O is possible, but reduction of [Y2O3]+. by CO is prevented. This arises because of “doping” effects which can control local charges and spin distributions.

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