6533b86efe1ef96bd12cbd39

RESEARCH PRODUCT

Heat-induced charge transfer in cobalt iron cyanide

R. Martínez-garcíaFrancisco M. RomeroM.c. GimenezMarcelo KnobelEdilso RegueraGerardo F. Goya

subject

Valence (chemistry)Mössbauer effectInorganic chemistrychemistry.chemical_elementInfrared spectroscopyGeneral ChemistryCondensed Matter Physicschemistry.chemical_compoundNuclear magnetic resonancechemistryMolecular vibrationHeat transferGeneral Materials ScienceFerricyanideCobaltSolid solution

description

The heating of Co(2+) ferricyanide above 801C induces an inner charge transfer from Co(2+) towards Fe(III) to form the mixed valence system Co(2+)Co(III) ferri- ferro-cyanide. This charge transfer takes place preserving the material framework and forming a solid solution of the initial and final species. The cell edge of the cubic cell (Fm-3m) of this solid solution follows a regular variation with

https://doi.org/10.1016/j.jpcs.2006.05.045