000203978 001__ 203978
000203978 005__ 20181203023716.0
000203978 0247_ $$2doi$$a10.1002/anie.201407334
000203978 022__ $$a1433-7851
000203978 02470 $$2ISI$$a000345590300019
000203978 037__ $$aARTICLE
000203978 245__ $$aSelf-Assembly of a 3d-5f Trinuclear Single-Molecule Magnet from a Pentavalent Uranyl Complex
000203978 260__ $$bWiley-V C H Verlag Gmbh$$c2014$$aWeinheim
000203978 269__ $$a2014
000203978 300__ $$a5
000203978 336__ $$aJournal Articles
000203978 520__ $$aMixed-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 M-II complex (M=Mn (1), Cd (2); TPA = tris(2-pyridylmethyl) amine). The metal centers were strategically chosen to promote the formation of discrete molecules rather than extended chains. Compound 1, which contains an almost linear {Mn-O=U=O-Mn} core, exhibits SMM behavior with a relaxation barrier of 81 +/- 0.5 K-the highest reported for a mono-uranium system-arising from intra-molecular Mn-U exchange interactions combined with the high Ising anisotropy of the uranyl(V) moiety. Compound 1 also exhibits an open magnetic hysteresis loop at temperatures less than 3 K, with a significant coercive field of 1.9 T at 1.8 K.
000203978 6531_ $$aexchange interactions
000203978 6531_ $$amagnetism
000203978 6531_ $$apolymetallic complexes
000203978 6531_ $$asingle-molecule magnets
000203978 6531_ $$auranium
000203978 700__ $$0248567$$g249160$$uCEA Grenoble, INAC, Lab Reconnaissance Ion & Chim Coordinat SCIB, UMR E3,CEA,UJF, F-38054 Grenoble 09, France$$aChatelain, Lucile
000203978 700__ $$uUniv Manchester, Sch Chem, Manchester M13 9PL, Lancs, England$$aWalsh, James P. S.
000203978 700__ $$uCEA Grenoble, INAC, Lab Reconnaissance Ion & Chim Coordinat SCIB, UMR E3,CEA,UJF, F-38054 Grenoble 09, France$$aPecaut, Jacques
000203978 700__ $$uUniv Manchester, Sch Chem, Manchester M13 9PL, Lancs, England$$aTuna, Floriana
000203978 700__ $$aMazzanti, Marinella$$g166619$$0248440
000203978 773__ $$j53$$tAngewandte Chemie-International Edition$$k49$$q13434-13438
000203978 909C0 $$xU12966$$0252515$$pGCC
000203978 909CO $$pSB$$particle$$ooai:infoscience.tind.io:203978
000203978 917Z8 $$x166619
000203978 937__ $$aEPFL-ARTICLE-203978
000203978 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000203978 980__ $$aARTICLE