Silicon monosulfide
| Names | |
|---|---|
| IUPAC name Silicon monosulfide | |
| Identifiers | |
| 3D model (JSmol) | |
| PubChem CID | |
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| Properties | |
| SiS | |
| Molar mass | 60.150 g/mol | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Silicon monosulfide is a chemical compound of silicon and sulfur. The chemical formula is SiS. Molecular SiS has been detected at high temperature in the gas phase. The gas phase molecule has an Si-S bondlength of 192.93 pm, this compares to the normal single bond length of 216 pm, and is shorter than the Si=S bond length of around 201 pm reported in an organosilanethione. Historically a pale yellow-red amorphous solid compound has been reported. The behavior of silicon can be contrasted with germanium which forms a stable solid monosulfide.