Disulfur monoxide
Disulfur monoxide or sulfur suboxide is an unstable gas being a compound of sulfur and oxygen with formula S2O. It is one of the lower sulfur oxides. It is a colourless gas. It can be formed by reacting thionyl chloride with Silver sulfide:
- SOCl2 + Ag2S → AgCl + S2O.
This is done under low pressure and high temperature.[1] Another way to form it is via a glow discharge in sulfur dioxide.[2] The arrangement of atoms is SSO in a bent form. The angle formed at the central sulfur atom is 117.88°. The sulfur to sulfur bond length is 188.4pm, and the length of the oxygen bond is 188.4pm.[3] It can form an orange red condensate at liquid nitrogen temperatures. On decomposition at room temperature it forms SO2 and a polymeric sulfur oxide.[2]
It is the base oxide for thiosulfurous acid.[4]
References
- ^ "Sulfur Halides". doi:10.1002/14356007.a25_623.
- ^ a b Cotton and Wilkinson (1966). Advanced Inorganic Chemistry A Comprehensive Treatise. p. 540.
- ^ Meschi, D.J. (1959). "The microwave spectrum, structure, and dipole moment of disulfur monoxide". Journal of Molecular Spectroscopy. 3 (1–6): 405–416. doi:10.1016/0022-2852(59)90036-0.
{{cite journal}}: Cite has empty unknown parameters:|laysource=,|laydate=,|month=,|laysummary=, and|quotes=(help); Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Alok Mittal. Objective Chemistry For Iit Entrance. p. 13.