A cubane-type manganese complex with H2O oxidation capabilities

2020 ◽  
Vol 4 (9) ◽  
pp. 4464-4468
Author(s):  
Swetanshu Tandon ◽  
Joaquín Soriano-López ◽  
Amal C. Kathalikkattil ◽  
Guanghua Jin ◽  
Paul Wix ◽  
...  
Keyword(s):  
Ph Value ◽  
Manganese Complex ◽  
Oxygen Evolving Complex ◽  
Neutral Ph ◽  
Oxygen Evolving

A Mn coordination cluster whose core shares some features with the natural oxygen evolving complex provides a bio-inspired complex that promotes catalytic H2O oxidation at neutral pH value.

Comparison of the structure of the manganese complex in the S1 and S2 states of the photosynthetic oxygen-evolving complex: an x-ray absorption spectroscopy study

Biochemistry ◽  
1987 ◽  
Vol 26 (19) ◽  
pp. 5974-5981 ◽  
Author(s):  
Vittal K. Yachandra ◽  
R. D. Guiles ◽  
Ann E. McDermott ◽  
James L. Cole ◽  
R. David Britt ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Manganese Complex ◽  
Oxygen Evolving Complex ◽  
Spectroscopy Study ◽  
X Ray ◽  
Photosynthetic Oxygen ◽  
Oxygen Evolving ◽  
X Ray Absorption

Hyperfine tensors for a model system for the oxygen evolving complex of photosystem II: calculation of the anisotropy shift that occurs beyond the strong exchange limit

2019 ◽  
Vol 21 (41) ◽  
pp. 22902-22909
Author(s):  
Christine Mehlich ◽  
Christoph van Wüllen
Keyword(s):  
Photosystem Ii ◽  
Density Functional Calculations ◽  
Density Functional ◽  
Mixed Valence ◽  
Model System ◽  
Manganese Complex ◽  
Broken Symmetry ◽  
Oxygen Evolving Complex ◽  
Strong Exchange ◽  
Oxygen Evolving

Broken-symmetry density functional calculations have been used to calculate effective 55Mn hyperfine (A) tensors for a mixed-valence tetranuclear manganese complex, a model system for the S2 state of the oxygen-evolving complex of photosystem II.

Isolation of a mixed-valence trinuclear manganese complex potentially relevant to the photosynthetic oxygen evolving complex

1988 ◽  
Vol 27 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Xinhua Li ◽  
Dimitris P. Kessissoglou ◽  
Martin L. Kirk ◽  
Vincent L. Pecoraro ◽  
Christopher J. Bender
Keyword(s):  
Mixed Valence ◽  
Manganese Complex ◽  
Oxygen Evolving Complex ◽  
Photosynthetic Oxygen ◽  
Oxygen Evolving

scholarly journals Structural Changes in the Acceptor Site of Photosystem II upon Ca2+/Sr2+ Exchange in the Mn4CaO5 Cluster Site and the Possible Long-Range Interactions

Biomolecules ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 371
Author(s):  
Koua
Keyword(s):  
Crystal Structure ◽  
Photosystem Ii ◽  
Long Range ◽  
Electron Acceptor ◽  
Structural Changes ◽  
Acceptor Site ◽  
Oxygen Evolving Complex ◽  
Long Range Interactions ◽  
Structural Perturbations ◽  
Oxygen Evolving

The Mn4CaO5 cluster site in the oxygen-evolving complex (OEC) of photosystem II (PSII) undergoes structural perturbations, such as those induced by Ca2+/Sr2+ exchanges or Ca/Mn removal. These changes have been known to induce long-range positive shifts (between +30 and +150 mV) in the redox potential of the primary quinone electron acceptor plastoquinone A (QA), which is located 40 Å from the OEC. To further investigate these effects, we reanalyzed the crystal structure of Sr-PSII resolved at 2.1 Å and compared it with the native Ca-PSII resolved at 1.9 Å. Here, we focus on the acceptor site and report the possible long-range interactions between the donor, Mn4Ca(Sr)O5 cluster, and acceptor sites.

scholarly journals CaMn3IVO4 Cubane Models of the Oxygen Evolving Complex: Spin Ground States S < 9/2 and the Effect of Oxo Protonation

2021 ◽  
Author(s):  
Heui Beom Lee ◽  
Angela A Shiau ◽  
David Marchiori ◽  
Paul H Oyala ◽  
BYUNG-KUK Yoo ◽  
...  
Keyword(s):  
Ground States ◽  
Oxygen Evolving Complex ◽  
Complex Spin ◽  
Oxygen Evolving
Sign in / Sign up

Export Citation Format

Share Document