Synthesis of ferrocenyldiimine metal carbonyl complexes and an investigation of the Mo adduct encapsulated in cyclodextrin

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Petrovski, Z (Autor) Outra; Braga, SS (Autor) Outra; Rodrigues, SS (Autor) Outra; Pereira, CCL (Autor) Outra; Goncalves, IS (Autor) Outra; Pillinger, M (Autor) Outra; Freire, C (Autor) FCUP; Ramao, CC (Autor) Outra

Revista

Título: New Journal of Chemistry

Vol. 29

Páginas: 347-354

ISSN: 1144-0546

Editora: Royal Society of Chemistry

Indexação

ISI Web of Knowledge - 23 Citações

Scopus - 22 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-000-6BJ

DOI: 10.1039/b409961c

Abstract (EN): Cr and Mo tetracarbonyl complexes bearing the diimine ligand N, N'-bis(ferrocenylmethylene)ethylenediamine (FcNN) have been prepared from the ligand and M(CO)(6). Two isomeric forms of (FcNN)Mo(CO)(4), corresponding to the cis, cis and cis, trans geometries with respect to the C=N bonds of the free ligand, were shown to exist in a 1:12.5 ratio by H-1 NMR (NOE experiments). By contrast, only the trans, trans isomer is observed for the Cr complex (FcNN)Cr(CO)(4). The compounds (FcNN)M(CO)(4) show ferrocene-based irreversible oxidation processes that lead to the deposition of a film at the electrode surface. (FcNN)Mo(CO)(4) was immobilised in permethylated beta-CD (TRIMEB) by addition of the guest to a solution of TRIMEB in dichloromethane. Removal of the solvent led to the isolation of an inclusion compound with a 2 : 1 host : guest stoichiometry, as evidenced by powder X-ray diffraction, thermogravimetric analysis, FTIR and C-13 CP MAS NMR spectroscopy. The electrochemical properties of (FcNN)Mo(CO)(4) upon encapsulation are discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8