The first Pb-containing cyclic polysulfides, 1,2,3,4,5-tetrathiaplumbolanes, derived from kinetically stabilized plumbylenes

Article abstract of DOI:10.1021/om00007a001

The first examples of Pb-containing cyclic polysulfides, 1,2,3,4,5-tetrathiaplumbolanes (R¹R²-PbS₄: 2 (R¹ = Tbt, R² = Tip), 3 (R¹ = Tbt, R² = Ttm), and 4 (R¹ = R² = Tip); Tbt = 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl, Tip = 2,4,6-triisopropylphenyl, and Ttm = 2,4,6-tris[(trimethylsilyl)methyl]phenyl), were synthesized and isolated as stable crystalline compounds by sulfurization of the corresponding kinetically stabilized diarylplumbylenes Tbt(Tip)Pb: (6), Tbt(Ttm)Pb: (7), and Tip₂Pb: (10). The molecular structures of the novel lead-containing metallacycles 2 and 4 were determined by X-ray cristallographic analysis.