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A series of five isostructural tetranuclear defect dicubane, or butterfly, topology 4f coordination clusters of formula [Ln III4 (μ 3 -OH) 2 (L) 4 (HL) 2 ]·2THF, [H 2 L=(E)-2-(2-hydroxy-3-methoxybenzylideneamino)phenol; Ln=Gd(1), Tb(2), Dy(3), Ho(4) and Er(5)) has been synthesized and characterized. The highly anisotropic Dy 4 and Ho ...
Recent work in designing and synthesising molecules displaying the phenomenon of “single molecule magnet” (SMM) behaviour has shown how a propeller motif with four paramagnetic metal centres can both stabilise non-zero ground spin states and display slow relaxation of the hysteresis: the signature of an SMM. Having thus identified the structural elements required it should be straightforward to produce...
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