PUB - Publikationen an der Universität Bielefeld

Starting from ClSbRf2 (Rf = C2F5, 3,5-(CF3)2C6H3) and H(E)P(tBu)2 (E = O, S) we prepared the oxy- and sulphanediyl-bridged adducts Rf2Sb(Cl)–E–(H)P(tBu)2, which are stable against the elimination of HCl. The different electron withdrawing substituents and chalcogen bridging units influence the size of the Sb–E–P angle. ClSb(C2F5)2 and nBu3SnH react to give HSb(C2F5)2, which forms the oxy-bridged adduct (F5C2)2Sb(H)–O–(H)P(tBu)2 with H(O)P(tBu)2 as observed via NMR. During workup, one molecule of HC2F5 was eliminated under decomposition. All products were characterised by NMR spectroscopy and all the stable ones additionally with X-ray diffraction experiments and elemental analyses.