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Mixed-Metal Lanthanide–Iron Triple-Decker Complexes with a cyclo-P5 Building Block


  • This work was supported by the Deutsche Forschungsgemeinschaft (DFG), the Russian Foundation for Basic Research (RFBR), and the Landesstiftung Baden-Württemberg GmbH. We thank Dr. Yanhua Lan for magnetic susceptibility measurements and Sibylle Schneider for X-ray single-crystal structure measurement.


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Triple-decker complexes with mixed d/f-block metals that have a purely inorganic middle deck were unknown. A mixed-metal iron–samarium complex is presented with a cyclo-P5 polyphosphide between the metal centers (see picture; Sm large black, C small black, Fe blue, N green, O red, P pink). This compound can be obtained as either a monomer or a dimer depending on the reaction conditions.