H2O as a chemical link for ferromagnetic interactions between aminoxyl units

Corinne Rancurel (1) , Nathalie Daro (1) , Oscar Benedi Borobia (1) , Eberhardt Herdtweck (2) , Jean-Pascal Sutter (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 Anorganisch-chemisches Institut

A bis(radical) derivative based on a triphenylphosphane core substituted by two nitronyl nitroxide units is reported. This compound was isolated in two forms. One consists of an H2O adduct where H2O is hydrogen-bonded to the radical units, whereas the second lacks this bridging unit. Magnetic studies revealed that the presence of the H2O bridge induces ferromagnetic exchange interaction between the spin carriers.

Mots clés: Hydrogen bonds; Through-bond interactions; Radicals; Magnetic properties

Domaines: Matériaux

Corinne Rancurel, Nathalie Daro, Oscar Benedi Borobia, Eberhardt Herdtweck, Jean-Pascal Sutter. H2O as a chemical link for ferromagnetic interactions between aminoxyl units. European Journal of Organic Chemistry, 2003, 1, pp.167-171. ⟨10.1002/1099-0690(200301)2003:1<167::AID-EJOC167>3.0.CO;2-G⟩. ⟨hal-00257976⟩