Thorium monosilicide
| Names | |
|---|---|
| IUPAC name
silicon;thorium
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| Other names
Thorium(II) silicide
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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| Properties | |
| SiTh | |
| Molar mass | 260.123 g·mol−1 |
| Density | 9.85 g/cm3[1] |
| Melting point | 1,900[1] °C (3,450 °F; 2,170 K) |
| Structure | |
| Orthorhombic | |
| Pbnm | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Thorium monosilicide is a binary inorganic chemical compound of thorium and silicon with the chemical formula ThSi.[1] The compound is one of several known thorium silicides, and its properties and potential applications have been investigated.
Synthesis
[edit]ThSi was first observed in 1953 when samples of ThSi1.0 were heated in vacuum to 1700 °C, resulting in the formation of ThSi and β-ThSi2.[2]
Physical properties
[edit]Thorium monosilicide has a orthorhombic crystal structure with the space group Pbnm. The compound is isostructural with ZrSi and USi.[3][4]
References
[edit]- ^ a b c Wedemeyer, Horst (1993). "Compounds of Thorium with Silicon". Th Thorium Supplement Volume C 8: Compounds with Si, P, As, Sb, Bi, and Ge. Springer. pp. 1–58. doi:10.1007/978-3-662-06348-4_1. ISBN 978-3-662-06348-4. Retrieved 19 June 2025.
- ^ Bickel, Michael; Wedemeyer, Horst (17 April 2013). Th Thorium Supplement Volume C 8: Compounds with Si, P, As, Sb, Bi, and Ge. Springer Science & Business Media. p. 9. ISBN 978-3-662-06348-4. Retrieved 19 June 2025.
- ^ Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 433. Retrieved 19 June 2025.
- ^ Ahrland, S.; Bagnall, K. W.; Brown, D. (7 June 2016). The Chemistry of the Actinides: Comprehensive Inorganic Chemistry. Elsevier. p. 390. ISBN 978-1-4831-5934-8. Retrieved 19 June 2025.