BALDÉ, Chérif; DESPLANCHES, Cédric; LÉTARD, Jean-François; CHASTANET, Guillaume

doi:10.1016/j.poly.2016.08.046

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BALDÉ, Chérif
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie et Physique des Matériaux [LCPM]

DESPLANCHES, Cédric
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

LÉTARD, Jean-François
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Article de revue

Ce document a été publié dans

Polyhedron. 2017, vol. 123, p. 138-144

Elsevier

Résumé en anglais

In this paper, we discuss the effects of metal dilution on the spin-crossover behavior of iron(II) solid solutions [FexNi1−x(bpp)2](NCSe)2 (bpp = 2,6-bis(pyrazol-3-yl)pyridine), including chemical synthesis, physical properties and light induced bistability aspects. For all the materials investigated, the thermal spin-crossover properties, T1/2, were measured and the stability of the photoinduced high-spin states was probed through determination of the T(LIESST) values associated with the light-induced excited spin-state trapping (LIESST) effect. It was found that T1/2 decreases with the metal dilution while T(LIESST) remains globally unchanged. These results were discussed and compared with previous results obtained in the same series with Zn(II) and Mn(II) used to substitute Fe(II). This comparison gives insights on the effect of the diluting ion size on the [T(LIESST), T1/2] temperatures.< Réduire

Mots clés en anglais

Spin crossover (SCO)

Dilution effects

Metal-coordination chemistry

LIESST

Iron

Spin Crossover (SCO)

DOI

http://dx.doi.org/10.1016/j.poly.2016.08.046

Project ANR

Initiative d'excellence de l'Université de Bordeaux

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026