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Title

Tuneable Intramolecular Intermetallic Interactions as a New Tool for Programming Linear Heterometallic 4f-4f Complexes

Authors
Dalla-Favera, Natalia
Ercolani, Gianfranco
Published in Inorganic Chemistry. 2007, vol. 46, no. 22, p. 9312-9322
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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PMID: 17915861
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DALLA-FAVERA, Natalia et al. Tuneable Intramolecular Intermetallic Interactions as a New Tool for Programming Linear Heterometallic 4f-4f Complexes. In: Inorganic Chemistry, 2007, vol. 46, n° 22, p. 9312-9322. https://archive-ouverte.unige.ch/unige:6913

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Deposited on : 2010-06-18

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