Salts of Tris(pentafluoroethyl)silylchalcogenolates [Si(CF)E] with E = S, Se, and Te: Synthesis, Structure, and Reactivity.

Unlike silanolates [SiRO] (R = alkyl, aryl), which have been intensely studied, the heavier derivatives [SiRE] (E = S, Se, Te) have been much less examined. Among such species, virtually nothing is known about perfluoroalkyl-substituted silylchalcogenolates. In this contribution, a convenient synthesis of tris(pentafluoroethyl)silylchalcogenolate salts [{(EtN)P═N}PN(H)Bu][Si(CF)E] (E = S, Se, Te; Bu = -butyl) is presented. All representatives were isolated and fully characterized by multinuclear NMR spectroscopy, IR spectroscopy, mass spectrometry, elemental analysis, and X-ray diffraction studies. Furthermore, first reactivity studies of these novel species toward selected metal halide complexes were performed. In this course, metal complexes [HgPh{SSi(CF)}] () and [Au(PPh){SSi(CF)}] () were isolated and characterized.