Germanium diselenide
| Names | |
|---|---|
| Other names Germanium selenide Germanium(IV) selenide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.863 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| GeSe2 | |
| Molar mass | 230.572 g·mol−1 |
| Appearance | yellow crystals |
| Density | 4.56±0.02 g·cm−3[1] |
| Melting point | 707±3 °C[1] |
| Related compounds | |
Other anions |
Germanium dioxide Germanium disulfide Germanium ditelluride |
Other cations |
Carbon diselenide Silicon diselenide Tin diselenide Lead diselenide |
Related compounds |
Germanium monoselenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Germanium diselenide is an inorganic compound, with the chemical formula of GeSe2.
Preparation
Germanium diselenide is prepared by reacting stoichiometric amounts of germanium and selenium or by reacting germanium tetrachloride with hydrogen selenide:[1]
- Ge + 2Se → GeSe2
- GeCl4 + 2H2Se → GeSe2 + 4HCl
Properties
Germanium diselenide reacts with selenium and hydrazine to obtained yellow (N2H5)4Ge2Se6, a selenidogermanate.[2]
- 2GeSe2 + 2Se + 5N2H4 → (N2H5)4Ge2Se6 + N2
It reacts with lead selenide and gallium(III) selenide at high temperatures to obtain PbGa2GeSe6.[3]
References
- ^ a b c Ivanov-Emin, B. N. Germanium selenides. Zhurnal Obshchei Khimii, 1940. 10: 1813-1818. ISSN: 0044-460X.
- ^ David B. Mitzi (May 2005). "Synthesis, Structure, and Thermal Properties of Soluble Hydrazinium Germanium(IV) and Tin(IV) Selenide Salts". Inorganic Chemistry. 44 (10): 3755–3761. doi:10.1021/ic048276l. ISSN 0020-1669. PMID 15877460. Retrieved 2021-01-23.
- ^ Valeriy V. Badikov, Dmitrii V. Badikov, Li Wang, Galina S. Shevyrdyaeva, Vladimir L. Panyutin, Anna A. Fintisova, Svetlana G. Sheina, Valentin Petrov (2019-08-07). "Crystal Growth and Characterization of a New Quaternary Chalcogenide Nonlinear Crystal for the Mid-Infrared: PbGa 2 GeSe 6". Crystal Growth & Design. 19 (8): 4224–4228. doi:10.1021/acs.cgd.9b00118. ISSN 1528-7483. S2CID 198354895. Archived from the original on 2021-07-26. Retrieved 2021-01-23.
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