Teaching an old molecule new tricks Evidence and rationalisation of the slow magnetisation dynamics in [DyTp2Acac]

Frédéric Guégan (1, 2, 3) , François Riobé (4) , Olivier Maury (4) , Julie Jung (5) , Boris Le Guennic (5) , Christophe Morell (1) , Dominique Luneau (2)

1 Chemometrics and theoretical chemistry. - Chimiométrie et chimie théorique
2 LMI - Laboratoire des Multimatériaux et Interfaces
3 LCT - Laboratoire de chimie théorique
4 LC - Laboratoire de Chimie - UMR5182
5 ISCR - Institut des Sciences Chimiques de Rennes

We report the luminescence and magnetic properties of the mononuclear Dy(iii) complex [DyTp2Acac] (Tp = tris-pyrazolylborohydride and Acac = 2,4-pentanedionate). This complex displays peculiar slow magnetisation dynamics at low temperature in the absence of a static field, which we managed to interpret using its resolved luminescence spectrum and ab initio calculations.

Domaines: Chimie; Chimie inorganique

Frédéric Guégan, François Riobé, Olivier Maury, Julie Jung, Boris Le Guennic, et al.. Teaching an old molecule new tricks Evidence and rationalisation of the slow magnetisation dynamics in [DyTp2Acac]. Inorganic Chemistry Frontiers, 2018, 5 (6), pp.1346-1353. ⟨10.1039/c8qi00174j⟩. ⟨hal-01835016⟩