Synthesis and Photophysical and Electrochemical Study of Tyrosine Covalently Linked to High‐Valent Copper(III) and Manganese(IV) Complexes |
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| Authors: | Ming Xia Jianhui Liu Yan Gao Björn Åkermark Licheng Sun |
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| Affiliation: | 1. State Key Laboratory of Fine Chemicals, DUT‐KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), Zhongshan Road 158‐40, Dalian 116012, P.?R. China (phone: +86?411?88993886;2. fax: +86?411?83702185);3. Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S‐10691 Stockholm;4. Department of Chemistry, Organic Chemistry, Royal Institute of Technology (KTH), S‐10044 Stockholm |
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| Abstract: | ![]()
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 1a and 2a . The corrolato manganese(IV) complex 3b shows one reversible reduction and one quasireversible oxidation at ?0.17 and 0.77 V vs. Ag/Ag+, respectively. |
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| Keywords: | Corrole complexes Tyrosine Photosystem II Oxygen‐evolving complex (OEC) Copper complexes Manganese complexes |
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