Thiosilicate

In chemistry and materials science, thiosilicate refers to materials containing anions of the formula SiS_(2+n)]^2n-. Derivatives where some sulfide is replaced by oxide are also called thiosilicates, examples being materials derived from the oxohexathiodisilicate [Si₂OS₆]^6-. Silicon is tetrahedral in all thiosilicates. Formally such materials are derived from silicon disulfide in analogy to the relationship between silicon dioxide and silicates. Thiosilicates are solids that are typically colorless. They are characteristically sensitive to hydrolysis.

Materials science

The LISICON (LIthium Super Ionic CONductor) include thiosilicates, which are fast ion conductors.[1] Thiosilicates and related thiogermanates are also of interest for infra red optics, since they only absorb low frequency IR modes.[2]

References

Morimoto, Hideyuki; Yamashita, Hideki; Tatsumisago, Masahiro; Minami, Tsutomu (1999). "Mechanochemical synthesis of new amorphous materials of 60Li2S·40SiS2 with high lithium ion conductivity". Journal of the American Ceramic Society. 82: 1352–1354. doi:10.1111/j.1151-2916.1999.tb01923.x.CS1 maint: uses authors parameter (link)
Yin, Wenlong; Feng, Kai; He, Ran; Mei, Dajiang; Lin, Zheshuai; Yao, Jiyong; Wu, Yicheng (2012). "BaGa₂MQ₆ (M = Si, Ge; Q = S, Se): A New Series of Promising IR Nonlinear Optical Materials". Dalton Transactions. 41: 5653–5661. doi:10.1039/c2dt12493a.CS1 maint: uses authors parameter (link)

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[1] Morimoto, Hideyuki; Yamashita, Hideki; Tatsumisago, Masahiro; Minami, Tsutomu (1999). "Mechanochemical synthesis of new amorphous materials of 60Li2S·40SiS2 with high lithium ion conductivity". Journal of the American Ceramic Society. 82: 1352–1354. doi:10.1111/j.1151-2916.1999.tb01923.x.CS1 maint: uses authors parameter (link)

[2] Yin, Wenlong; Feng, Kai; He, Ran; Mei, Dajiang; Lin, Zheshuai; Yao, Jiyong; Wu, Yicheng (2012). "BaGa₂MQ₆ (M = Si, Ge; Q = S, Se): A New Series of Promising IR Nonlinear Optical Materials". Dalton Transactions. 41: 5653–5661. doi:10.1039/c2dt12493a.CS1 maint: uses authors parameter (link)