Author:

Keywords:

single-molecule magnets, electron-paramagnetic-resonance, spin ground-state, dy-3 triangles, cluster, complexes, hysteresis, relaxation, manganese, behavior, Science & Technology, Physical Sciences, Chemistry, Multidisciplinary, Chemistry, SINGLE-MOLECULE MAGNETS, COMPLEXES, HYSTERESIS, MANGANESE, CLUSTER, S=83/2, FIELD, SUSCEPTIBILITY, RELAXATION, AGGREGATE, 03 Chemical Sciences, 34 Chemical sciences

Abstract:

Two heterometallic [(Dy6Mn12III)-Mn-III] clusters comprising of the same [(Mn8O13)-O-III] fragment, four isolated Mn-III ions and two linear [Dy-3(III)] units have been synthesised. Except for the same composition, the main difference of these two cores lies in the coordination environment and the orientations of the linear [Dy-3(III)] units. This difference leads to an alternation in the symmetry of the two cores that significantly modulates their magnetic properties including ground spin state and slow relaxation behavior.