SwePub
Tyck till om SwePub Sök här!
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:kth-21764"
 

Sökning: onr:"swepub:oai:DiVA.org:kth-21764" > Photo-induced oxida...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00006014naa a2200757 4500
001oai:DiVA.org:kth-21764
003SwePub
008100810s2002 | |||||||||||000 ||eng|
009oai:lup.lub.lu.se:7547892c-d9d8-4d48-9b52-9170a17ccde4
009oai:DiVA.org:uu-271364
024a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217642 URI
024a https://doi.org/10.1016/S0162-0134(02)00394-X2 DOI
024a https://lup.lub.lu.se/record/1093672 URI
024a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2713642 URI
040 a (SwePub)kthd (SwePub)lud (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Huang, Pingu Uppsala universitet,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,Molekylär biomimetik4 aut0 (Swepub:lu)biok-phu
2451 0a Photo-induced oxidation of a dinuclear Mn-2(II,II) complex to the Mn-2(III,IV) state by inter- and intramolecular electron transfer to Ru-III tris-bipyridine
264 1c 2002
338 a print2 rdacarrier
500 a QC 20100525
520 a To model the structural and functional parts of the water oxidizing complex in Photosystem 11, a dimeric manganese(II,11) complex (1) was linked to a ruthenium(II)tris-bipyridine (Ru-II(bpy)3) complex via a substituted L-tyrosine, to form the trinuclear complex 2 [J. Inorg. Biochem. 78 (2000) 15]. Flash photolysis of 1 and Ru-II(bpy), in aqueous solution, in the presence of an electron acceptor, resulted in the stepwise extraction of three electrons by Ru-III(bpy), from the Mn-2(II,II) dimer, which then attained the Mn-2(III,IV) oxidation state. In a similar experiment with compound 2, the dinuclear Mn complex reduced the photo-oxidized Ru moiety via intramolecular electron transfer on each photochemical event. From EPR it was seen that 2 also reached the Mn-2(III,IV) state. Our data indicate that oxidation from the Mn-2(II,II) state proceeds stepwise via intermediate formation of Mn-2(II,III) and Mn-2(III,III). In the presence of water, cyclic voltammetry showed an additional anodic peak beyond Mn-2(II,III/III,III) oxidation which was significantly lower than in neat acetonitrile. Assuming that this peak is due to oxidation to Mn-2(III,IV), this suggests that water is essential for the formation of the Mn-2(III,IV) oxidation state. Compound 2 is a structural mimic of the water oxidizing complex, in that it links a Mn complex via a tyrosine to a highly oxidizing photosensitizer. Complex 2 also mimics mechanistic aspects of Photosystem 11, in that the electron transfer to the photosensitizer is fast and results in several electron extractions from the Mn moiety.
650 7a NATURVETENSKAPx Biologix Biokemi och molekylärbiologi0 (SwePub)106022 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Biochemistry and Molecular Biology0 (SwePub)106022 hsv//eng
650 7a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng
653 a manganese
653 a EPR spectroscopy
653 a electrochemistry
653 a artificial photosynthesis
653 a bioinorganic chemistry
653 a valence mniimniii complexes
653 a photosystem-ii
653 a manganese complexes
653 a different solvents
653 a water oxidation
653 a catalase
653 a tyrosine
653 a models
653 a epr
653 a ruthenium
653 a Bioinorganic chemistry
653 a Artificial photosynthesis
653 a Electrochemistry
653 a Manganese
653 a EPR spectroscopy
700a Magnuson, Annu Uppsala universitet,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,Molekylär biomimetik4 aut0 (Swepub:uu)anmag178
700a Lomoth, R.u Uppsala universitet,Fysikalisk kemi4 aut
700a Abrahamsson, M.4 aut
700a Tamm, M.4 aut
700a Sun, Licheng4 aut
700a van Rotterdam, B.4 aut
700a Park, Jonathanu 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, LTH4 aut0 (Swepub:lu)biok-jpa
700a Hammarstrom, L.u Uppsala universitet,Fysikalisk kemi4 aut
700a Akermark, B.4 aut
700a Styring, Stenbjörnu Uppsala universitet,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,Molekylär biomimetik4 aut0 (Swepub:uu)ststy735
710a Biokemi och Strukturbiologib Centrum för Molekylär Proteinvetenskap4 org
773t Journal of Inorganic Biochemistryg 91:1, s. 159-172q 91:1<159-172x 0162-0134x 1873-3344
856u http://dx.doi.org/10.1016/S0162-0134(02)00394-Xy FULLTEXT
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-21764
8564 8u https://doi.org/10.1016/S0162-0134(02)00394-X
8564 8u https://lup.lub.lu.se/record/109367
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-271364

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy