Preparation and X-ray crystal structure of Se2I4(Sb2F11)2 containing the eclipsed diselenium tetraiodide(2+) cation

Abstract
Se2I4(Sb2F11)2 has been prepared and its structure determined by single crystal X-ray diffraction; the Se2I4 2+cation has an eclipsed S2O4 2– type structure with two Sel2 + units joined by a weak selenium–selenium bond [2.841(2)Å] and very weak iodine–iodine interactions [3.756(2), 3.661(2)Å].

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