Germanium diselenide
| Names | |
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| 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
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Germanium dioxide Germanium disulfide Germanium ditelluride |
Other cations
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Carbon diselenide Silicon diselenide Tin diselenide Lead diselenide |
Related compounds
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Germanium monoselenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Germanium diselenide is an inorganic compound, with the chemical formula of GeSe2.
Preparation
[edit]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
[edit]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
[edit]- ^ 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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