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Mixed‐metal uranium compounds are very attractive candidates in the design of single‐molecule magnets (SMMs), but only one 3d–5f hetero‐polymetallic SMM containing a uranium center is known. Herein, we report two trimeric heterodimetallic 3d–5f complexes self‐assembled by cation–cation interactions between a uranyl(V) complex and a TPA‐capped MII complex (M=Mn (1), Cd (2); TPA=tris(2‐pyridylmethyl)amine)...
Ein Uranyl(V)‐Komplex dient als Baustein beim Aufbau eines {MnOUOMn}‐Komplexes. M. Mazzanti et al. zeigen in der Zuschrift auf S. 13652 ff., dass es sich bei diesem System um den Einzelmolekülmagneten mit der höchsten effektiven Relaxationsbarriere [ΔE=(81±0.5) K] für ein Monouran‐System handelt. Als Ursachen hierfür wurden die große Ising‐Anisotropie der Uranyl‐Brücke sowie intramolekulare Mn‐U‐Austauschwechselwirkungen...
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