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    Prussian Blue Analogues of Reduced Dimensionality

    Year: 2012

    Journal: Small, 2012, 8 (16), 2532-2540, 20131009

    Authors: Régis Y. N. Gengler, Luminita M. Toma, Emilio Pardo, Francesc Lloret, Xiaoxing Ke, Gustaaf Van Tendeloo, Dimitrios Gournis, Petra Rudolf

    Organizations: Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands; Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica, Universitat de València, Edificios Institutos de Paterna, Catedrático José Beltrán Martínez n 2, 46980 Paterna, Spain; EMAT research group, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerpen, Belgium; Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece

    Mixed-valence polycyanides (Prussian Blue analogues) possess a rich palette of properties spanning from room-temperature ferromagnetism to zero thermal expansion, which can be tuned by chemical modifications or the application of external stimuli (temperature, pressure, light irradiation). While molecule-based materials can combine physical and chemical properties associated with molecular-scale building blocks, their successful integration into real devices depends primarily on higher-order properties such as crystal size, shape, morphology, and organization. Herein a study of a new reduced-dimensionality system based on Prussian Blue analogues (PBAs) is presented. The system is built up by means of a modified Langmuir–Blodgett technique, where the PBA is synthesized from precursors in a self-limited reaction on a clay mineral surface. The focus of this work is understanding the magnetic properties of the PBAs in different periodic, low-dimensional arrangements, and the influence of the “on surface” synthesis on the final properties and dimensionality of the system.