Synthesis, structural and magnetic studies of an isostructural family of mixed 3d/4f tetranuclear ‘star’ clusters

Abstract
DC magnetic studies on new ‘star’ clusters of formula [Mn3Ln(acac)6(tea)2][Mn(acac)3] (Ln = Gd (1) and Dy (2)) and [Fe3Ln(acac)6(tea)2] (Ln = Gd (3) and Dy (4)) show that all cases display weak coupling, with compounds 3 and 4 displaying ferromagnetic JLnFe coupling, 3 having a S = 11 ground state.

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