Heat-induced charge transfer in cobalt iron cyanide

Por favor, use este identificador para citar o enlazar este ítem: http://repositoriodigital.ipn.mx/handle/123456789/11236

Título :	Heat-induced charge transfer in cobalt iron cyanide
Palabras clave :	A. Inorganic compounds D. Crystal structure C. Infrared spectroscopy C. Mo¨ ssbauer spectroscopy C. X-ray diffraction
Fecha de publicación :	16-ene-2013
Editorial :	ScienceDirect
Descripción :	The heating of Co(2+) ferricyanide above 80 1C 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 the material composition. This mixed valence system was characterized using X-ray diffraction, infrared, thermo-gravimetric, Mo¨ ssbauer and magnetic measurements. Its formation is easily detected by the appearance of an intermediate n(CN) absorption band in the infrared spectra at around 2120 cm 1, 40cm 1 below and above the observed frequency for this vibration in Co(2+) ferri- and ferro-cyanide, respectively. r 2006 Elsevier Ltd. All rights reserved.
URI :	http://www.repositoriodigital.ipn.mx/handle/123456789/11236
Otros identificadores :	Journal of Physics and Chemistry of Solids 67 (2006) 2289–2299 http://hdl.handle.net/123456789/748
Aparece en las colecciones:	Doctorado

Ficheros en este ítem:

Fichero	Descripción	Tamaño	Formato
2006MVSHeating 2.pdf		77.79 kB	Adobe PDF	Visualizar/Abrir

El Instituto Politécnico Nacional