Organosilicon hypersilylchalcogenolates and related compounds

[SiSxHy]n – Perhydridopolysilathianes: Cross‐Linked Thio Analogues of Polysiloxanes

“…This and similar reactions with other sulfur sources have been studied since the 1920s . However, no reaction has been observed between SiCl 4 and liquid H 2 S, although at higher temperatures or in the presence of Lewis bases, thiolysis of the Si–Cl bond takes place .…”

“…As already mentioned, no melting or decomposition was observed up to 700 °C. Molecular hydridosilathianes such as (H 2 SiS) 3 (>190 °C) and heteroadamantane (HSi) 4 S 6 (>350 °C) decompose well below 700 °C with H 2 S release , …”

“…Molecular hydridosilathianes such as (H 2 SiS) 3 (>190°C) and heteroadamantane (HSi) 4 S 6 (>350°C) decompose well below 700°C with H 2 S release. [13,14] An interesting point is the morphology of the product. BET analysis of the nitrogen adsorption measurement ( Figure S6) showed a surface area of 187 m 2 g -1 and a type IV isotherm, which indicates mesoporosity.…”

“…However, no reaction has been observed between SiCl 4 and liquid H 2 S, although at higher temperatures or in the presence of Lewis bases, thiolysis of the Si–Cl bond takes place . As expected, dichlorosilanes preferably form rings, whereas trichlorosilanes furnish adamantane cages as thiolysis products . Starting from chlorohydridosilanes, thiolysis is unsuccessful.…”

“…This and similar reactions with other sulfur sources have been studied since the 1920s. [9][10][11][12][13][14][15] However, no reaction has been observed between SiCl 4 and liquid H 2 S, [9] although at higher temperatures or in the presence of Lewis bases, thiolysis of the Si-Cl bond takes place. [10][11][12] As expected, dichlorosilanes preferably form rings, [13] whereas trichlorosilanes furnish adamantane cages as thiolysis products.…”