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Synthesis and photophysical and electrochemical study of tyrosine covalently linked to high-valent copper(III) and manganese(IV) complexes
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2007 (English)In: Helvetica Chimica Acta, ISSN 0018-019X, E-ISSN 1522-2675, Vol. 90, no 3, 553-561 p.Article in journal (Refereed) Published
Abstract [en]

As bio-inspired chemical model of the oxygen-evolving complex (OEC) in photosystem II, a new tyrosine-modified corrole ligand 3 and its high-valent copper and manganese complexes 3a and 3b were synthesized and characterized. The copper complexes 1a and 2a of corrole 1 and 2 were also prepared for comparison. The emission property indicates that the emission of ligands 2 and 3 is located at 670 nm, but no emission is observed for their metal complexes due to its suppression by the metal center. The electrochemical study shows that 3a might dimerize at the first two reversible oxidations, a behavior which was not observed in the case of In and 2a. ne corrolato manganese(IV) complex 3b shows one reversible reduction and one quasireversible oxidation at -0.17 and 0.77 V vs. Ag/Ag+, respectively.

Place, publisher, year, edition, pages
2007. Vol. 90, no 3, 553-561 p.
Keyword [en]
photosynthetic oxygen evolution, coupled electron-transfer, photosystem-ii, water-oxidation, resonance raman, compound-i, corroles, catalysts, peroxidase, absorption
Identifiers
URN: urn:nbn:se:kth:diva-16507ISI: 000245368000007Scopus ID: 2-s2.0-34250671644OAI: oai:DiVA.org:kth-16507DiVA: diva2:334549
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Sun, Licheng

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