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Covalently linked r...
Covalently linked ruthenium(II)-manganese(II) complexes : Distance dependence of quenching and electron transfer
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Berg, K. E. (author)
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Tran, A. (author)
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Raymond, M. K. (author)
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Abrahamsson, M. (author)
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Wolny, J. (author)
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Redon, S. (author)
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Andersson, M. (author)
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Sun, Licheng C. (author)
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- Styring, Stenbjörn (author)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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Hammarstrom, L. (author)
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Toftlund, H. (author)
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Akermark, B. (author)
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(creator_code:org_t)
- 2001
- 2001
- English.
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In: European Journal of Inorganic Chemistry. - 1434-1948 .- 1099-1948. ; 2001:4, s. 1019-1029
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Continuing our development of artificial models for photosystem II in green plants, a series of compounds have been prepared in which a RU(bpy)(3)(2+) photosensitizer is covalently Linked to a manganese(II) electron donor. In addition to a trispicolylamine Ligand, two other manganese Ligands, dipicolylamine and aminodiacetic acid, have been introduced in order to study Ligands that are appropriate for the construction of manganese dimers with open coordination sites for the binding of water. Coordination equilibria of the manganese ions were monitored by EPR. The interactions between the ruthenium and manganese moieties were probed by flash photolysis, cyclic voltammetry and steady-state and time-resolved emission measurements. The quenching of the Ru-II excited state by Mn-II was found to be rapid in complexes with short Ru-Mn distances. Nevertheless, each Run species could be photo-oxidized by bimolecular quenching with methylviologen, and the subsequent electron transfer from Mn-II to Ru-III could be monitored.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- ruthenium
- manganese
- N ligands
- electron transfer
- photosystem-ii
- manganese complexes
- artificial photosynthesis
- ground-state
- oxygen
- water
- model
- delocalization
- ruthenium(ii)
- porphyrin
- Ruthenium
- N ligands
- Electron transfer
- Manganese
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Berg, K. E.
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Tran, A.
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Raymond, M. K.
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Abrahamsson, M.
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Wolny, J.
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Redon, S.
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show more...
-
Andersson, M.
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Sun, Licheng C.
-
Styring, Stenbjö ...
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Hammarstrom, L.
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Toftlund, H.
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Akermark, B.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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European Journal ...
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European Journal ...
- By the university
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Royal Institute of Technology
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Lund University