Synthesis, structure, and magnetic properties of a Yb III complex with the iminopyridine radical-anionic ligand

The reaction of equimolar amounts of ytterbocene (C5Me4H)2Yb(THF)2 and iminopyridine 2,6-Pri2C6H3N=CH(C5H4N) accompanied by the one-electron oxidation of the ytterbium ion produced the unique lanthanide complex (C5Me4H)2YbIII[2,6-Pri2-C6H3NCH(C5H4N)]–• with the iminopyridine radical-anionic ligand. The structure of the complex in the crystalline state was established by X-ray diffraction and its magnetic properties were studied in the temperature range of 1.8—300 K.