Thorium monosilicide

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.

Thorium monosilicide

Names
IUPAC name silicon;thorium
Other names Thorium(II) silicide
Identifiers
3D model (JSmol)	Interactive image
PubChem CID	159688632
InChI InChI=1S/Si.Th Key: MWCXNDQKSNSMJN-UHFFFAOYSA-N
SMILES [Th].[Si]
Properties
Chemical formula	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
Crystal structure	Orthorhombic
Space group	Pbnm
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

ThSi was first observed in 1953 when samples of ThSi_1.0 were heated in vacuum to 1700 °C, resulting in the formation of ThSi and β-ThSi₂.^[2]

Physical properties

Thorium monosilicide has a orthorhombic crystal structure with the space group Pbnm. The compound is isostructural with ZrSi and USi.^[3][4]