Pressure effect studies in molecular magnetism - 14/02/08

Doi : 10.1016/j.crci.2006.09.011

Philipp Gütlich ^a,^⁎ , Ana B. Gaspar ^b, Yann Garcia ^c, Vadim Ksenofontov ^a
^a Institut für anorganische Chemie und analytische Chemie, Johannes Gutenberg Universität, Staudinger Weg 9, 55099 Mainz, Germany
^b Institut de Ciència Molecular, Universitat de València, Edifici de Instituts de Paterna, Apartat de Correus 22085, 46071 València, Spain
^c Unité de chimie des matériaux inorganiques et organiques, département de chimie, faculté des sciences, université catholique de Louvain, place Louis-Pasteur 1, B-1348 Louvain-la-Neuve, Belgium

Corresponding author.

Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.

pages	16
Iconographies	17
Vidéos	0
Autres	0

Abstract

We report on the studies of the influence of hydrostatic pressure (up to 1.2GPa) on dynamic electronic structure phenomena in 3d transition metal coordination compounds by Mössbauer and magnetic susceptibility measurements. We present examples of mononuclear spin crossover compounds of iron(II) and chromium(II), dinuclear complexes of iron(II) exhibiting coexistence of intramolecular antiferromagnetic coupling and thermal spin crossover, 1D, 2D and 3D spin crossover coordination polymers of iron(II), a valence tautomeric system of cobalt(II) showing thermal transition from a high-spin [Co^II(semiquinone)] to a low-spin [Co^III(catecholate)] species on lowering the temperature, a photo-magnetically active Prussian blue-type system with temperature- and pressure-induced electron transfer, and finally an iron-TCNE compound with ferromagnetic interaction.

Le texte complet de cet article est disponible en PDF.

Keywords : Spin crossover, Pressure, Phase transitions, Valence tautomerism, Prussian blue analogues, Molecular magnets