New insights into the structure and properties of electroactive polymer films derived from [Ni(salen)]

• Tipo: Artigo em Revista Científica Internacional
• Data: 1997

Autores

VilasBoas, M (Autor) Outra; Freire, C (Autor) FCUP; deCastro, B (Autor) FCUP; Christensen, PA (Autor) Outra; Hillman, AR (Autor) Outra

Revista

Título: Inorganic Chemistry

Vol. 36

Páginas: 4919-4929

ISSN: 0020-1669

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 107 Citações

Scopus - 112 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-001-AEX

DOI: 10.1021/ic970467j

Abstract (EN): Oxidative electrochemical polymerization of (N,N'-ethylenebis(salicylideneaminato)) nickel(II), [Ni(salen)li in acetonitrile/TEAP was reinvestigated. The polymers were characterized by in situ FTIR and UV-visible spectroscopies in order to explore film structure and to clarify the electronic states as a function of the electrochemically controlled applied redox potential; oxidized species involved in polymerization and oxidative switching of the polymer were also assessed by en situ EPR experiments. Integration of data from all techniques revealed that (a) electropolymerization of [Ni(salen)] is ultimately a Ligand-based-process that takes place through a mixture of o- and p-linking of the phenyl rings and (b) poly[Ni(salen)] exhibits physical/chemical properties that cannot be attributed to an aggregation of individual complexes, behaving rather like a polyphenylene compound, with the metal ion acting as a bridge between biphenylene moieties.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11