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A mixed-ligand approach for spin-crossover modulation in a linear Fe(II) coordination polymer.
Inorg Chem ; 53(9): 4482-90, 2014 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-24738562
In this work, we present a family of Fe(II) coordination polymers of general formula [Fe(btzx)(3-3x)(btix)(3x)](ClO4)2 with interesting spin-crossover properties. These coordination polymers have been synthesized using chemical mixtures of two different but closely related ligands, 1,4-bis(tetrazol-1-ylmethyl)benzene (btzx) and 1,4-bis(triazol-1-ylmethyl)benzene (btix), and the effect of a gradual substitution of the ligand in the spin transition temperature has been investigated. Several chemical mixtures have been structurally characterized by X-ray powder diffraction indicating a clear critical amount in the composition of the mixture after which mixed phases rather than a single phase comprising mixed components are observed. Importantly, this approach causes the appearance of a new transition at lower temperatures that is not present in the pure [Fe(L)3](ClO4)2 systems.





Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Polímeros / Compostos Ferrosos Idioma: Inglês Revista: Inorg Chem Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Espanha