The first thiosilicate from solution: synthesis and crystal structure of (NH4)2[SiS3(NH3)]·2NH3

Abstract

The ammonolysis of SiS(2) in liquid ammonia yields crystalline (NH(4))(2)[SiS(3)(NH(3))].2NH(3), which contains [SiS(3)(NH(3))](2-) as a derivative of the ortho-thiosilicate anion SiS(4)(4-).

Alkali halide flux synthesis, crystal structure, and photoelectric response of quaternary thiosilicates K3Ga3Si7S20 and K2ZnSi3S8

“…From the viewpoint of synthetic methodology, the vast majority of quaternary thiosilicates are synthesized by the high temperature flux approach due to the sensitivity of thiosilicates in solvents. 38 In the flux synthesis, thiosilicates are usually prepared by direct reaction of silicon or silicon sulfide and other metal elements with a specific flux as the medium heated under vacuum or in an inert atmosphere. 39,40 Because silicon and silicon sulfide have a higher melting point than that of Ge, Sn and their sulfides, the sintering temperature of thiosilicates is higher than that of their Ge/Sn analogues, making the flux synthesis of thiosilicates relatively difficult.…”