| Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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|---|---|---|
| Page(s) | C2-663 - C2-664 | |
| DOI | https://doi.org/10.1051/jp4/1997139 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-663-C2-664
DOI: 10.1051/jp4/1997139
1 ESRF, BP. 220, 38043 Grenoble, France
2 Université Joseph-Fourler, Faculté de Pharmacie, 38706 La Tronche, France
3 LIMSAG (UMR 9953), Université de Bourgogne, 6 boulevard Gabriel, 21100 Dijon, France
4 Centre de Recherche Air Liquide, BP. 126, Les Loges-en-Josas, 78350 Jouy-en-Josas, France
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-663-C2-664
DOI: 10.1051/jp4/1997139
XAFS Studies of High-Valent Porphyrinato Manganèse Complexes with Ozone
V. Gotte1, J. Goulon1, A. Rogalev1, C. Goulon-Ginet1, 2, K. Perié3, J.M. Barbe3, R. Guilard3 and P. Cocolios41 ESRF, BP. 220, 38043 Grenoble, France
2 Université Joseph-Fourler, Faculté de Pharmacie, 38706 La Tronche, France
3 LIMSAG (UMR 9953), Université de Bourgogne, 6 boulevard Gabriel, 21100 Dijon, France
4 Centre de Recherche Air Liquide, BP. 126, Les Loges-en-Josas, 78350 Jouy-en-Josas, France
Abstract
We produce strong evidence of the interaction of ozone with a series of Manganese (III) porphyrinato
complexes to form a well defined reactive intermediate. In the latter species, the Manganese atom which is formally in a
tetravalent (IV) state, is (at least) hexacoordinated with the metal unambiguously lying in the basal plane of the four
pyrrolic nitrogens of the porphyrin macrocycle. Substitution of Bromine or Chlorine axial ligands by ozonids is most
likely to happen. This conclusion is also supported by XANES and EXAFS spectra recorded at the Chlorine K-edge which
suggest that ozone may even form with chlorine a complex anion.
© EDP Sciences 1997