Synthesis and Structure of a Samarium Complex with Perylene

Abstract

The potassium salt of the perylene ligand used as a precursor in further transformations was obtained by the reduction of perylene with potassium metal in DME or THF. The perylene ligand was transferred to a samarium metal center using a metathesis strategy, yielding a complex SmI­(Per)­(THF)4. In the resulting compound, samarium remains divalent, while perylene is in the form of a radical anion, which is confirmed by spectroscopic methods and quantum chemical calculations.

The coordination of alkali–metal nickelates to organic π-systems: synthetic, structural and spectroscopic insights

“…S5 † for EPR spectrum). 39 Moreover, attempts to prepare the sodium and potassium analogues via alkali–metal exchange with AMO t Bu led exclusively to the formation of the corresponding perylene radical anions, as confirmed by EPR spectroscopy and single-crystal X-ray diffraction (see Fig. S6, S7 and S18 † ), and the target alkali–metal nickelates could not be isolated.…”