Selective photoproduction of O2 from the Mn4O4 cubane core: A structural and functional model for the photosynthetic water-oxidizing complex

Masayuki Yagi, Kurt V. Wolf, Patrick J. Baesjou, Steven L. Bernasek, Gerard Dismukes

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Cores for thought! A new [Mn4O4]6+ "cubane" core complex (L6Mn4O4) with six facially bridging phosphinate chelate ligands (L=(MePh)2PO2) was synthesized. Photo-excitation releases molecular O2 by intramolecular coupling of two core oxygen atoms and selective rearrangement to a [Mn4O2]6+ "butterfly" core ([L5Mn4O2]+; see scheme). Thus the Mn4O4 cubane core exhibits unique reactivity in O2 evolution which may account for its presence in the photosynthetic enzyme.

Original languageEnglish (US)
Pages (from-to)2925-2928
Number of pages4
JournalAngewandte Chemie - International Edition
Volume40
Issue number15
DOIs
StatePublished - Aug 3 2001

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Photoexcitation
Enzymes
Ligands
Oxygen
Atoms
Water

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Keywords

  • Cluster compounds
  • Manganese
  • Oxygen
  • Photosynthesis
  • Water oxidation

Cite this

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title = "Selective photoproduction of O2 from the Mn4O4 cubane core: A structural and functional model for the photosynthetic water-oxidizing complex",
abstract = "Cores for thought! A new [Mn4O4]6+ {"}cubane{"} core complex (L6Mn4O4) with six facially bridging phosphinate chelate ligands (L−=(MePh)2PO2−) was synthesized. Photo-excitation releases molecular O2 by intramolecular coupling of two core oxygen atoms and selective rearrangement to a [Mn4O2]6+ {"}butterfly{"} core ([L5Mn4O2]+; see scheme). Thus the Mn4O4 cubane core exhibits unique reactivity in O2 evolution which may account for its presence in the photosynthetic enzyme.",
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Selective photoproduction of O2 from the Mn4O4 cubane core : A structural and functional model for the photosynthetic water-oxidizing complex. / Yagi, Masayuki; Wolf, Kurt V.; Baesjou, Patrick J.; Bernasek, Steven L.; Dismukes, Gerard.

In: Angewandte Chemie - International Edition, Vol. 40, No. 15, 03.08.2001, p. 2925-2928.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Selective photoproduction of O2 from the Mn4O4 cubane core

T2 - A structural and functional model for the photosynthetic water-oxidizing complex

AU - Yagi, Masayuki

AU - Wolf, Kurt V.

AU - Baesjou, Patrick J.

AU - Bernasek, Steven L.

AU - Dismukes, Gerard

PY - 2001/8/3

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KW - Cluster compounds

KW - Manganese

KW - Oxygen

KW - Photosynthesis

KW - Water oxidation

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