Controlling spin transition in one-dimensional coordination polymers through polymorphism
Novio Vázquez, Fernando (Institut Català de Nanociència i Nanotecnologia)
Campo, Javier (Instituto de Ciencia de Materiales de Aragón)
Ruiz-Molina, Daniel (Institut Català de Nanociència i Nanotecnologia)

Data:	2014
Resum:	A series of polymer 1 microcrystals with several different morphologies have been systematically synthesized by controlling experimental parameters, namely concentration of reactants, temperature, solvent nature, and the use of surfactants, and their valence tautomerism (VT) has been studied by combined electron microscopy, X-ray diffraction data, and magnetization. Our results indicate that all of them can be grouped exclusively into two different crystalline phases, or a mixture of them, that critically determine the VT process, independent of the morphology and/or dimensions of the crystals. Moreover, a difference in the critical temperature of both phases by more than 50 K allows us to regulate VT. These results head the use of valence tautomeric 1D polymers in devices where strict control and reproducibility of the switching behavior at different length scales and integration procedures is highly required.
Ajuts:	Ministerio de Economía y Competitividad MAT2012-38318-C03-02 Ministerio de Ciencia e Innovación MAT-2011-27233-C02-02
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Crystals ; Salts ; Coordination polymers ; Phase transitions ; Surfactants
Publicat a:	Inorganic chemistry, Vol. 53, issue 16 (Aug. 2014) , p. 8742-8748, ISSN 1520-510X

DOI: 10.1021/ic5013928

Postprint 23 p, 695.9 KB

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