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Selenium Chloride (other)
Selenium chloride may refer to either of the following: *Selenium monochloride, Se2Cl2 *Selenium dichloride, SeCl2 *Selenium tetrachloride Selenium tetrachloride is the inorganic compound composed with the formula SeCl4. This compound exists as yellow to white volatile solid. It is one of two commonly available selenium chlorides, the other example being selenium monochloride, Se2 ..., SeCl4 {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selenium Monochloride
Selenium monochloride is an inorganic compound with the formula Se2Cl2. Although it is called selenium monochloride, a more descriptive name might be diselenium dichloride. It is a reddish-brown, oily liquid that hydrolyses slowly. It exists in chemical equilibrium with SeCl2, SeCl4, chlorine, and elemental selenium. Selenium monochloride is mainly used as a reagent for the synthesis of Se-containing compounds. Structure and properties Selenium monochloride has the connectivity Cl-Se-Se-Cl. With a nonplanar structure, it has C2 molecular symmetry, similar to hydrogen peroxide and sulfur monochloride. The Se-Se bond length is 2.23 Å, and the Se-Cl bond lengths are 2.20 Å. The dihedral angle is 87°. Preparation Early routes to selenium monochloride involved chlorination of elemental selenium. An improved method involves the reaction of a mixture of selenium, selenium dioxide, and hydrochloric acid:Fehér, F. "Diselenium Dichloride". In ''Handbook of Preparative Inorganic C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selenium Dichloride
Selenium dichloride is the inorganic compound with the formula SeCl2. It forms red-brown solutions in diethyl ether, ethers. Selenium dichloride has been prepared by treating gray selenium with sulfuryl chloride. Adducts of selenium dichloride with thioethers and thioureas are well characterized. Related complexes of tellurium dichloride are known. Solutions of selenium dichloride are unstable at room temperature, forming selenium monochloride after several minutes at room temperature: :3 SeCl2 → Se2Cl2 + SeCl4 References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
