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Prof. Dr. Igor L. Fedushkin, Dr. Olga V. Maslova, Dr. Alexander G. Morozov, Dr. Sebastian Dechert, Dr. Serhiy Demeshko and Prof. Dr. Franc Meyer Genuine Redox Isomerism in a Rare-Earth-Metal Complex Angewandte Chemie International Edition 51

Version of Record online: 18 SEP 2012 | DOI: 10.1002/anie.201204452

Thumbnail image of graphical abstract

Redox isomerism is observed for a lanthanide complex for the first time. Upon lowering the temperature, an electron of [{(dpp-bian)Yb(μ-Cl)(dme)}2] (1) is transferred from the metal to the ligand (see picture), giving rise to marked shortening of Yb[BOND]N bonds and a hysteretic jump in the magnetic moment. The crystal packing is of a crucial importance, as two other crystal modifications of 1 do not undergo this effect.

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