Chemical and Electrochemical Oxidation of Diferrocenyltelluride

The halogenation of diferrocenyltelluride, Fc2Te, with XeF2, PhICl2 and I2 afforded the diferrocenyltellurium dihalides Fc2TeX2 (X=F, Cl, I). Halide exchange of Fc2TeCl2 with KBr yielded Fc2TeBr2. The oxidation of Fc2Te with NO[SbF6] and K[B(C6F5)4] provided the triferrocenyltelluronium salt [Fc3Te][B(C6F5)4] and the dinuclear nitrosyl iron complex Fe2(μ‐TeFc)2(NO)4. The new compounds were comprehensively characterized by multinuclear NMR spectroscopy (125Te, 19F, 13C, 1H), UV/vis absorption spectroscopy, cyclic voltammetry, LIFDI‐TOF mass spectrometry and single crystal X‐ray diffraction.