2026-04-13T07:26:26Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/1623302025-12-04T21:40:36Zcom_2072_1057col_2072_478917col_2072_478933
RECERCAT
author
Gonzálvez, Miguel A.
author
Gallen Ortiz, Albert
author
Ferrer García, Montserrat
author
Martínez López, Manuel, 1957-
2020-05-25T16:09:25Z2021-01-13T06:10:19Z2020-01-132020-05-25T16:09:26Z
Novel types of water-soluble anionic cubic cages, K4[{CoIII(Me3-Tacn)}4{FeII(CN)6}4] and Na4[{CoIII(Me3-Tacn)}4{FeII(CN)6}4] (Me3-Tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane), were prepared by means of a mechanistically designed self-assembly process between [Co(Me3-Tacn)Cl3] and A4[FeII(CN)6] (M = Na or K), consisting of a rate-limiting outer-sphere redox step, followed by a fast substitution/inner-sphere redox reaction sequence. These compounds show remarkable stability in aqueous solution at different pH ranges, displaying neat protonation processes and reversible oxidation with peroxodisulfate to its neutral {FeIII4CoIII4} form. Furthermore, the cages behave as a robust and water-soluble molecular Prussian Blue analogue capable of encapsulating {Na-OH2}+ pairs and K+ cations in aqueous solution, with the cubic structure of the complex being preserved. Substitution of the {Na-OH2}+ pairs by K+ is easily accomplished, and the electrochemical properties of the sodium and potassium salts of the new cages have been found to be dramatically dependent on the encapsulated units.
(c) American Chemical Society , 2020 info:eu-repo/semantics/openAccess
Cobalt
Compostos heterocíclics
Lligands
Cobalt
Heterocyclic compounds
Ligands
Self-assembly and properties of a discrete water-soluble Prussian blue analogue FeII/CoIII cube: confinement of a water molecule in aqueous solution
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion