Chemistry:Strontium thiocyanate
From HandWiki
Short description: Water-soluble salt
Sr2+
[N≡C–S- ] 2 | |
| Identifiers | |
|---|---|
3D model (JSmol)
|
|
| ChemSpider | |
PubChem CID
|
|
| |
| |
| Properties | |
| C2N2S2Sr | |
| Molar mass | 203.78 g·mol−1 |
| Appearance | white solid |
| Melting point | 331–379 °C (decomposes at 650 °C) |
| Structure[2] | |
| Monoclinic | |
| C2/c | |
| 2/m[1] | |
a = 9.86 Å, b = 6.63 Å, c = 8.20 Å α = 90°, β = 91.3°, γ = 90°
| |
Formula units (Z)
|
4 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Strontium thiocyanate refers to the salt Sr(SCN)
2. It is a colorless solid. According to X-ray crystallography, it is a coordination polymer. The Sr2+ ions are each coordinated to eight thiocyanate anions in a distorted square antiprismatic molecular geometry where each square face contains two adjacent S atoms and two adjacent N atoms.[2]: 1695–1696 The motif is reminiscent of the fluorite structure.[3] The same structure is observed for Ca(SCN)2, Ba(SCN)2, and Pb(SCN)2.[1]
References
- ↑ 1.0 1.1 Mokuolu, J. A. A.; Speakman, J. C. (1975). "The crystal structure of lead(II) thiocyanate". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry 31 (1): 172–176. doi:10.1107/S0567740875002300. Bibcode: 1975AcCrB..31..172M.
- ↑ 2.0 2.1 Wickleder, Claudia (July 2001). "M(SCN)2 (M = Eu, Sr, Ba): Kristallstruktur, thermisches Verhalten, Schwingungsspektroskopie". Zeitschrift für anorganische und allgemeine Chemie 627 (7): 1693–1698. doi:10.1002/1521-3749(200107)627:7<1693::AID-ZAAC1693>3.0.CO;2-U.
- ↑ Cliffe, Matthew J. (2024). "Inorganic Metal Thiocyanates". Inorganic Chemistry 63 (29): 13137–13156. doi:10.1021/acs.inorgchem.4c00920. PMID 38980309.
 |  |
