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Tuneable intramolecular intermetallic interactions as a new tool for programming linear heterometallic 4f-4f complexes.
Dalla-Favera, Natalia; Hamacek, Josef; Borkovec, Michal; Jeannerat, Damien; Ercolani, Gianfranco; Piguet, Claude.
Afiliação
  • Dalla-Favera N; Department of Inorganic, Analytical and Applied Chemistry, University of Geneva, 30 quai E. Ansermet, Geneva 4, Switzerland.
Inorg Chem ; 46(22): 9312-22, 2007 Oct 29.
Artigo em Inglês | MEDLINE | ID: mdl-17915861
ABSTRACT
Statistical mechanics predicts that the design of pure organized heteropolymetallic chains of metal ions bound to linear receptors depends on controlled deviations from the mixing rule DeltaE(MiMj) = 1/2 (DeltaE(MiMi) + DeltaE(MjMj)), whereby DeltaE(MiMj) is the intramolecular intermetallic interaction between neighboring metal i and metal j along the receptor. A thorough investigation of linear polymetallic trivalent lanthanide triple-stranded helicates shows that such deviations are amplified by an increase in the nuclearity of the final complexes and are thus easily evidenced in the tetranuclear heterobimetallic helicates [La(4-y)Lu(y)(L6)3](12+) (y = 0-4). The chemical and physical origins of this unprecedented behavior are discussed together with its practical consequences for programming pure heteropolymetallic 4f-4f complexes.

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Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Inorg Chem Ano de publicação: 2007 Tipo de documento: Artigo País de afiliação: Suíça