Syntheses, spectroscopies and structures of molybdenum(VI) complexes with homocitrate.
Inorg Chem
; 45(20): 8447-51, 2006 Oct 02.
Article
em En
| MEDLINE
| ID: mdl-16999446
ABSTRACT
Initial investigations into the possible role of homocitric acid in iron molybdenum cofactor (FeMo-co) of nitrogenase lead us to isolate and characterize two tetrameric molybdate(VI) species. The complexes K2(NH4)2[(MoO2)4O3(R,S-Hhomocit)2].6H2O (1) and K5[(MoO2)4O3(R,S-Hhomocit)2]Cl.5H2O (2) (homocitric acid = H4homocit, C7H10O7) are prepared from the reactions of acyclic homocitric acid and molybdates, which represent the first synthetic structural examples of molybdenum homocitrate complexes. The homocitrate ligand trapped by tetranuclear molybdate coordinates to the molybdenum(VI) atom through alpha-alkoxy and alpha-, beta-carboxy groups. The physical properties, structural parameters, and their possible biological relevances are discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos Organometálicos
/
Ácidos Tricarboxílicos
/
Molibdênio
Idioma:
En
Revista:
Inorg Chem
Ano de publicação:
2006
Tipo de documento:
Article