Fine tuning of the catalytic effect of a metal-free porphyrin on the homogeneous oxygen reduction

The catalytic effect of tetraphenylporphyrin on the oxygen reduction with ferrocene in 1,2-dichloroethane can be finely tuned by varying the molar ratio of the acid to the catalyst present in the solution. The mechanism involves binding of molecular oxygen to the protonated free porphyrin base, in c...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) Vol. 47; no. 19; p. 5446
Main Authors: Trojánek, Antonín, Langmaier, Jan, Šebera, Jakub, Záliš, Stanislav, Barbe, Jean-Michel, Girault, Hubert H, Samec, Zdeněk
Format: Journal Article
Language:English
Published: England 21.05.2011
ISSN:1364-548X, 1364-548X
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Summary:The catalytic effect of tetraphenylporphyrin on the oxygen reduction with ferrocene in 1,2-dichloroethane can be finely tuned by varying the molar ratio of the acid to the catalyst present in the solution. The mechanism involves binding of molecular oxygen to the protonated free porphyrin base, in competition with ion pairing between the protonated base and the acid anion present.
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ISSN:1364-548X
1364-548X
DOI:10.1039/c1cc11075f