| |||
| |||
Names | |||
---|---|---|---|
Other names
| |||
Identifiers | |||
3D model (
JSmol)
|
| ||
ChemSpider | |||
PubChem
CID
|
|||
| |||
| |||
Properties | |||
Se2S6 | |||
Molar mass | 350.30 g·mol−1 | ||
Appearance | orange needles | ||
Density | 2.44 g/cm3 | ||
Melting point | 121.5 °C (250.7 °F; 394.6 K) | ||
Solubility | soluble in carbon disulfide | ||
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Selenium hexasulfide is a chemical compound with the chemical formula Se2S6. Its molecular structure is an 8-membered ring, consisting of two selenium and six sulfur atoms (diselenacyclooctasulfane), analogous to the S8 ring, an allotrope of sulfur ( cyclooctasulfur or cyclooctasulfane), and other 8-membered rings of selenium sulfides with formula SenS8−n. [2]
There are several isomers depending on the relative placement of the selenium atoms in the ring: 1,2-diselenacyclooctasulfane (with the two Se atoms adjacent), 1,3-diselenacyclooctasulfane, 1,4-diselenacyclooctasulfane, and 1,5-diselenacyclooctasulfane (with the Se atoms opposite). [3] It is an oxidizing agent.
The 1,2 isomer can be prepared by reaction of chlorosulfanes and dichlorodiselane with potassium iodide in carbon disulfide. The reaction produces also cyclooctaselenium Se8 and all other eight-member cyclic selenium sulfides, except selenacyclooctasulfane SeS7, and several six- and seven-membered rings. [2]
| |||
| |||
Names | |||
---|---|---|---|
Other names
| |||
Identifiers | |||
3D model (
JSmol)
|
| ||
ChemSpider | |||
PubChem
CID
|
|||
| |||
| |||
Properties | |||
Se2S6 | |||
Molar mass | 350.30 g·mol−1 | ||
Appearance | orange needles | ||
Density | 2.44 g/cm3 | ||
Melting point | 121.5 °C (250.7 °F; 394.6 K) | ||
Solubility | soluble in carbon disulfide | ||
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Selenium hexasulfide is a chemical compound with the chemical formula Se2S6. Its molecular structure is an 8-membered ring, consisting of two selenium and six sulfur atoms (diselenacyclooctasulfane), analogous to the S8 ring, an allotrope of sulfur ( cyclooctasulfur or cyclooctasulfane), and other 8-membered rings of selenium sulfides with formula SenS8−n. [2]
There are several isomers depending on the relative placement of the selenium atoms in the ring: 1,2-diselenacyclooctasulfane (with the two Se atoms adjacent), 1,3-diselenacyclooctasulfane, 1,4-diselenacyclooctasulfane, and 1,5-diselenacyclooctasulfane (with the Se atoms opposite). [3] It is an oxidizing agent.
The 1,2 isomer can be prepared by reaction of chlorosulfanes and dichlorodiselane with potassium iodide in carbon disulfide. The reaction produces also cyclooctaselenium Se8 and all other eight-member cyclic selenium sulfides, except selenacyclooctasulfane SeS7, and several six- and seven-membered rings. [2]