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1.
Selective Photoproduction of O(2) from the Mn(4)O(4) Cubane Core: A Structural and Functional Model for the Photosynthetic Water-Oxidizing Complex This research was supported by grants from the US National Institutes of Health (GM39932) and the National Science Foundation (CHE96-19190). Fellowship support was provided by the Japan Society for the Promotion of Science (M.Y.) and the Netherlands NOW Scholarship (P.B.).
Yagi, Masayuki; Wolf, Kurt V.; Baesjou, Patrick J.; Bernasek, Steven L.; Dismukes, G. Charles.
Angew Chem Int Ed Engl ; 40(15): 2925-2928, 2001 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-11500912
2.
Selective Photoproduction of O2 from the Mn4 O4 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, G Charles.
Angew Chem Int Ed Engl ; 40(15): 2925-2928, 2001 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-29711999

RESUMO

Cores for thought! A new [Mn4 O4 ]6+ "cubane" core complex (L6 Mn4 O4 ) with six facially bridging phosphinate chelate ligands (L- =(MePh)2 PO2- ) was synthesized. Photo-excitation releases molecular O2 by intramolecular coupling of two core oxygen atoms and selective rearrangement to a [Mn4 O2 ]6+ "butterfly" core ([L5 Mn4 O2 ]+ ; see scheme). Thus the Mn4 O4 cubane core exhibits unique reactivity in O2 evolution which may account for its presence in the photosynthetic enzyme.

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