Planar tetranuclear lanthanide clusters with the Dy4 analogue displaying slow magnetic relaxation.
Two isostructural tetranuclear lanthanide clusters of general formula [Ln(III)(4)(μ(3)-OH)(2)(o-van)(4)(O(2)CC(CH(3))(3))(4)(NO(3))(2)]·CH(2)Cl(2)·1.5H(2)O (Ln = Gd (1) and Dy (2)) (o-van = 3-methoxysalicylaldehydato anion) are reported. The metallic cores of both complexes display a planar 'butterfly' arrangement. Magnetic studies show that both are weakly coupled, with 2 displaying probable SMM behaviour.
School of Chemistry, Monash University, Clayton, Victoria 3800, Australia.
Stuart K
SK
Langley
Nicholas F
NF
Chilton
Ian A
IA
Gass
Boujemaa
B
Moubaraki
Keith S
KS
Murray