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| Names | |
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| IUPAC name
Germanium(IV) nitride
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.031.864 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Ge3N4 | |
| Molar mass | 273.947 g/mol |
| Appearance | light brown powder |
| Density | 5.25 g/cm3 |
| Boiling point | 900 °C (1,650 °F; 1,170 K) (decomposes) |
| Related compounds | |
Other anions
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Germanium phosphide |
Other cations
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Silicon nitride Gallium nitride |
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(IV) nitride is an inorganic compound with the chemical formula Ge3N4. It can be produced through the reaction of germanium and ammonia:[1]
- 3 Ge + 4 NH3 → Ge3N4 + 6 H2
Structure
In its pure state, germanium(IV) nitride is a colorless, inert solid that crystallizes in many polymorphs, of which the most stable is the trigonal β-form (space group P31c). In this structure, the germanium atoms are tetrahedrally coordinated while the nitrogen atoms are trigonal planar.[2] The γ-form, which forms under high pressure, has a spinel structure.[3]
References
- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ^ Ruddlesden, S. N.; Popper, P. (1958). "On the crystal structure of the nitrides of silicon and germanium". Acta Crystallographica. 11 (7): 465–468. doi:10.1107/S0365110X58001304.
- ^ McMillan, Paul F.; Deb, Sudip K.; Dong, Jian-Jung (2003). "High-pressure metastable phase transitions in ?-Ge3N4 studied by Raman spectroscopy". Journal of Raman Spectroscopy. 34 (7–8): 567–577. Bibcode:2003JRSp...34..567M. doi:10.1002/jrs.1007. ISSN 0377-0486.
