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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
13
|
| pubmed:dateCreated |
1986-8-1
|
| pubmed:abstractText |
We present a mechanism for photosynthetic O2 evolution based on a structural conversion of a Mn4O6 "adamantane"-like complex to a Mn4O4 "cubane"-like complex. EPR spectral data obtained from the S2 state of the O2-evolving complex are characteristic of a Mn4O4 cubane-like structure. Based on this structure for the manganese complex in the S2 state as well as a consideration of the other evidence available on the natural system and the coordination chemistry of manganese, structures are proposed for the five intermediate oxidation states of the manganese complex. A molecular mechanism for the formation of an O--O bond and the displacement of O2 from the S4 state is easily accommodated by the proposed model. The model is discussed in terms of recent EPR, x-ray, and UV spectral data obtained from the manganese site in the photosynthetic O2-evolving complex.
|
| pubmed:grant | |
| pubmed:commentsCorrections | |
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jul
|
| pubmed:issn |
0027-8424
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
83
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
4586-8
|
| pubmed:dateRevised |
2010-9-10
|
| pubmed:meshHeading | |
| pubmed:year |
1986
|
| pubmed:articleTitle |
Mechanism for photosynthetic O2 evolution.
|
| pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|