Mimicking the electron donor side of Photosystem II in artificial photosynthesis

Reiner Lomoth, Ann Magnuson, Martin Sjödin, Ping Huang, Stenbjörn Styring, Leif Hammarström

研究成果: Review article

86 引用 (Scopus)

抄録

This review focuses on our recent efforts in synthetic ruthenium-tyrosine- manganese chemistry mimicking the donor side reactions of Photosystem II. Tyrosine and tryptophan residues were linked to ruthenium photosensitizers, which resulted in model complexes for proton-coupled electron transfer from amino acids. A new mechanistic model was proposed and used to design complexes in which the mechanism could be switched between concerted and step-wise proton-coupled electron transfer. Moreover, a manganese dimer linked to a ruthenium complex could be oxidized in three successive steps, from Mn 2 II,II to Mn2 III,IV by the photo-oxidized ruthenium sensitizer. This was possible thanks to a charge compensating ligand exchange in the manganese complex. Detailed studies of the ligand exchange suggested that at high water concentrations, each oxidation step is coupled to a proton-release of water-derived ligands, analogous to the oxidation steps of the manganese cluster of Photosystem II.

元の言語English
ページ(範囲)25-40
ページ数16
ジャーナルPhotosynthesis Research
87
発行部数1
DOI
出版物ステータスPublished - 2006 1
外部発表Yes

Fingerprint

ruthenium
Photosystem II Protein Complex
Ruthenium
Photosynthesis
Manganese
photosystem II
manganese
electrons
photosynthesis
Electrons
protons
Protons
Ligands
electron transfer
Tyrosine
tyrosine
oxidation
Oxidation
Photosensitizing Agents
Water

ASJC Scopus subject areas

  • Plant Science

これを引用

Lomoth, R., Magnuson, A., Sjödin, M., Huang, P., Styring, S., & Hammarström, L. (2006). Mimicking the electron donor side of Photosystem II in artificial photosynthesis. Photosynthesis Research, 87(1), 25-40. https://doi.org/10.1007/s11120-005-9005-0

Mimicking the electron donor side of Photosystem II in artificial photosynthesis. / Lomoth, Reiner; Magnuson, Ann; Sjödin, Martin; Huang, Ping; Styring, Stenbjörn; Hammarström, Leif.

:: Photosynthesis Research, 巻 87, 番号 1, 01.2006, p. 25-40.

研究成果: Review article

Lomoth, R, Magnuson, A, Sjödin, M, Huang, P, Styring, S & Hammarström, L 2006, 'Mimicking the electron donor side of Photosystem II in artificial photosynthesis', Photosynthesis Research, 巻. 87, 番号 1, pp. 25-40. https://doi.org/10.1007/s11120-005-9005-0
Lomoth, Reiner ; Magnuson, Ann ; Sjödin, Martin ; Huang, Ping ; Styring, Stenbjörn ; Hammarström, Leif. / Mimicking the electron donor side of Photosystem II in artificial photosynthesis. :: Photosynthesis Research. 2006 ; 巻 87, 番号 1. pp. 25-40.
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