Selective Photoproduction of O2 from the Mn4 O4 Cubane Core: A Structural and Functional Model for the Photosynthetic Water-Oxidizing Complex.
Angew Chem Int Ed Engl
; 40(15): 2925-2928, 2001 Aug 03.
Article
em En
| MEDLINE
| ID: mdl-29711999
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
País/Região como assunto:
Cuba
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2001
Tipo de documento:
Article
País de publicação:
Alemanha