Disulfur monoxide

Disulfur monoxide or sulfur suboxide is an inorganic compound with formula S2O. It is one of the lower sulfur oxides. It is a colourless gas and condenses to give a pale coloured solid that is unstable at room temperature. It is a bent molecule with an S−S−O angle of 117.88°, S−S bond length of 188.4pm, and S−O bond length of 146.5pm. Disulfur monoxide or sulfur suboxide is an inorganic compound with formula S2O. It is one of the lower sulfur oxides. It is a colourless gas and condenses to give a pale coloured solid that is unstable at room temperature. It is a bent molecule with an S−S−O angle of 117.88°, S−S bond length of 188.4pm, and S−O bond length of 146.5pm. Disulfur monoxide was discovered by Peter W. Schenk in 1933. However, only when Myers and Meschi studied it, did the actual composition and shape of the molecule become known. It can be formed by many methods, including combustion of sulfur vapour in a deficiency of oxygen. It arises by oxidizing sulfur with copper (II) oxide: