Antimony triselenide
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| Antimony triselenide | |
|---|---|
| Other names | antimonselite |
| Molecular formula | Sb2Se3 |
| Identifiers | |
| CAS number | [1315-05-5] |
| Properties | |
| Molar mass | 480.4 g/mol |
| Appearance | black crystals |
| Density | 5.81 g/cm3, solid |
| Melting point |
611°C |
| Structure | |
| Crystal structure | orthorhombic |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
|
Antimony triselenide is the chemical compound with the formula Sb2Se3. The material exists as the sulfosalt mineral antimonselite, which crystallizes in an orthorhombic space group.[1] In this compound, antimony is assigned the oxidation state 3+ and selenium 2-, but in fact the bonding in this compound is highly covalent as reflected by the black color and semiconducting properties of this and related materials.[2] I
[edit] References
- ^ Jambor, J. L.; Grew, E. S."New Mineral Names" American Mineralogist, Volume 79, pages 387-391, 1994.
- ^ Caracas, R.; Gonze, X. "First-principles study of the electronic properties of A2B3 minerals,, with A=Bi,Sb and B=S,Se, Note: Hypothetical sulphosalt structure derived from density functional theory"" Physics and Chemistry of Minerals 2005, volume 32 p.295-300.
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