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1996 | 90 | 2 | 385-391
Article title

Photochemical Reduction and Oxidation of Cerium(IV) Porphyrin Sandwich Complexes

Content
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Languages of publication
EN
Abstracts
EN
Irradiation of cerium(IV) complex of octaethyl bisporphyrin Ce[OEP(-2]_{2} with visible light, in the presence of CCl]_{4} as an electron acceptor, leads to their photooxidation and π cation radical formation. The process was followed using electron absorption and magnetic circular dichroism spectroscopy. Electronic configuration in neutral mono- and bisporphyrin (sandwich) complexes were compared to the one of the neutral species. Photoirradiation of sandwich octaethyl- and tetraphenyl bisporphyrins, in the presence of an electron donor (triethylamine) results in their photoreduction on different pathways. Formation of the [Ce(III)(TPP)(-2)TPP(-2)]¯ and [Ce(III)(OEP)(-1)(OEP)(-2)] complexes was followed by absorption and electron spin resonance spectroscopy.
Keywords
EN
Publisher

Year
Volume
90
Issue
2
Pages
385-391
Physical description
Dates
published
1996-08
Contributors
author
  • Dept. of Chemistry, UMCS, Pl. M. Curie-Skłodowskiej 3, 20-031 Lublin, Poland
author
  • Institut de Chimie des Substances Naturelles, CNRS, 91198 Gif-sur-Yvette, France
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv90z220kz
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