Molecular SiS has been detected at high temperature in the gas phase.

[1] The gas phase molecule has an Si-S bondlength of 192.93 pm, this compares to the normal single bond length of 216 pm,[1][2] and is shorter than the Si=S bond length of around 201 pm reported in an organosilanethione.

[1] Historically a pale yellow-red amorphous solid compound has been reported.

[3] The behavior of silicon can be contrasted with germanium which forms a stable solid monosulfide.

This inorganic compound–related article is a stub.