Selenium oxydichloride is the

inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemi ...

with the formula SeOCl₂. It is a colorless liquid. With a high dielectric constant (55) and high specific conductance, it is an attractive solvent. Structurally, it is a close chemical relative of thionyl chloride SOCl₂, being a pyramidal molecule.

Preparation and reactions

Selenium oxydichloride can be prepared by several methods, and a common one involves the conversion of selenium dioxide to dichloroselenious acid followed by dehydration: :SeO₂ + 2 HCl → Se(OH)₂Cl₂ :Se(OH)₂Cl₂ → SeOCl₂ + H₂O The original synthesis involved the redistribution reaction of selenium dioxide and selenium tetrachloride. The compound hydrolyzes readily to form hydrogen chloride and selenium dioxide.

References

Selenium(IV) compounds Oxychlorides Inorganic solvents {{inorganic-compound-stub

Preparation and reactions

See also

References