Critical temperature of the LIESST effect in a series of hydrated and anhydrous complex salts [Fe(bpp)2]X2

Silvia Marcén Murillo (1) , Lollita Lecren (1) , Laurence Capes (2) , Harold A. Goodwin (3) , Jean-François Létard (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 MOTOROLA - Motorola Labs
3 School of Chemistry

The magnetic properties of aseries of hydrated and dehydrated spin crossover compounds derived from the 2,6-bis(pyrazol-3-yl)pyridine (bpp) ligand have been reinvestigated and the light-induced crossover studied at 10 K. The capacity of a compound to retain the light-induced HS information has been estimated through the determination of the T(LIESST). The position of each compound in the T(LIESST)-T1/2 diagram has been analyzed and the effect of the nature of the salt, hydration degree and cooperativity have been discussed.

Mots clés: Salts; LIESST; Critical temperature

Domaines: Matériaux

Silvia Marcén Murillo, Lollita Lecren, Laurence Capes, Harold A. Goodwin, Jean-François Létard. Critical temperature of the LIESST effect in a series of hydrated and anhydrous complex salts [Fe(bpp)2]X2. Chemical Physics Letters, 2002, 358 (1-2), pp.87-95. ⟨10.1016/S0009-2614(02)00590-0⟩. ⟨hal-00716814⟩