SwePub
Sök i LIBRIS databas

  Utökad sökning

WFRF:(Berggren Gustav)
 

Sökning: WFRF:(Berggren Gustav) > (2015-2019) > K alpha X-ray Emiss...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003144naa a2200373 4500
001oai:DiVA.org:uu-364392
003SwePub
008181102s2018 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3643922 URI
0247 a https://doi.org/10.1021/acs.inorgchem.8b016742 DOI
040 a (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Schuth, Nilsu Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany4 aut
2451 0a K alpha X-ray Emission Spectroscopy on the Photosynthetic Oxygen-Evolving Complex Supports Manganese Oxidation and Water Binding in the S-3 State
264 c 2018-08-01
264 1b AMER CHEMICAL SOC,c 2018
338 a print2 rdacarrier
520 a The unique manganese calcium-catalyst in photosystem II (PSII) is the natural paragon for efficient light driven water oxidation to yield O-2. The oxygen-evolving complex (OEC) in the dark-stable state (S-1) comprises a Mn4CaO4 core with five metal-bound water species. Binding and modification of the water molecules that are substrates of the water-oxidation reaction is mechanistically crucial but controversially debated. Two recent crystal structures of the OEC in its highest oxidation state (S-3) show either a vacant Mn coordination site or a bound peroxide species. For purified PSII at room temperature, we collected Mn K alpha X-ray emission spectra of the S-0, S-1, S-2, and S-3 intermediates in the OEC cycle, which were analyzed by comparison to synthetic Mn compounds, spectral simulations, and OEC models from density functional theory. Our results contrast both crystallographic structures. They indicate Mn oxidation in three S-transitions and suggest additional water binding at a previously open Mn coordination site. These findings exclude Mn reduction and render peroxide formation in S-3 unlikely.
650 7a NATURVETENSKAPx Kemix Oorganisk kemi0 (SwePub)104042 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciencesx Inorganic Chemistry0 (SwePub)104042 hsv//eng
7001 a Zaharieva, Ivelinau Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany4 aut
7001 a Chernev, Petkou Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany4 aut
7001 a Berggren, Gustavu Uppsala universitet,Molekylär biomimetik,U4 aut0 (Swepub:uu)guber255
7001 a Anderlund, Magnusu Uppsala universitet,Institutionen för kemi - Ångström4 aut0 (Swepub:uu)maand227
7001 a Styring, Stenbjörnu Uppsala universitet,Molekylär biomimetik4 aut0 (Swepub:uu)ststy735
7001 a Dau, Holgeru Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany4 aut
7001 a Haumann, Michaelu Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany4 aut
7102 a Free Univ Berlin, Dept Phys, D-14195 Berlin, Germanyb Molekylär biomimetik4 org
7730 t Inorganic Chemistryd : AMER CHEMICAL SOCg 57:16, s. 10424-10430q 57:16<10424-10430x 0020-1669x 1520-510X
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-364392
8564 8u https://doi.org/10.1021/acs.inorgchem.8b01674

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