Dodecanuclear [Mn6(III)Ln6(III)] species: synthesis, structures and characterization of magnetic relaxation phenomena.

ABSTRACT

The use of H3L (= 2-(ß-naphthalideneamino)-2-hydroxymethyl-1-propanol) in mixed-metal manganese-lanthanide carboxylate cluster chemistry has led to the isolation of two new dodecametallic heteronuclear isostructural [Mn6(III)Ln6(III)] complexes (Ln = Gd, Dy), with the Dy analogue displaying temperature and frequency dependent out-of-phase signals suggesting possible single molecule magnetism behaviour.