Abstract
New complex analogous to Prussian Blue were synthesized both in solid phase and in aqueous solution by mixing the sodium salt of pentacyano(4,4′-bipyridine)-ferrate(II) with Cu(II) and Fe(III) salts. Infrared and visible spectral data of these compounds indicate formation of a polymeric structure involving a cyanide bridge that connects the two metallic centers. Preference of cyanide over 4,4′-bipyridine bridging can be explained on the basis of its greater basicity when coordinated to a pentacyanoferrate(II) moiety.
Zusammenfassung
Durch die Reaktion von Natrium-pentacyano(4,4′-bipyridin)-ferrat(II) mit Cu(II)- und Eisen(III)-Salzen entstehen neue Substanzen, die sowohl in der festen Phase wie auch in wäßriger Lösung mit Preussisch Blau verwandt sind. Die Spektren (IR und sichtbarer Bereich) zeigen die Bildung polymerer Strukturen durch Cyanidbrücken zwischen den Metallatomen. Die Bevorzugung der Cyanid-Liganden zur Brückenbildung gegenüber 4,4′-Bipyridin wird durch die höhere Basenstärke erklärt.
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Members of the “Carrera del Investigador Científico”, Conicet, Argentina.
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Meoni, G.S.B., Brandán, S.A., Altabef, A.B. et al. Synthesis and spectral properties of mixed binuclear complexes derived from the ion pentacyano(4,4′-bipyridine)ferrate(II). Monatsh Chem 117, 1263–1269 (1986). https://doi.org/10.1007/BF00810871
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DOI: https://doi.org/10.1007/BF00810871