Germanium nitride

Germanium nitride
Names
IUPAC name
Germanium(IV) nitride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.864 Edit this at Wikidata
  • InChI=1S/Ge3N4/c4-1-7(2-5)3-6
    Key: BIXHRBFZLLFBFL-UHFFFAOYSA-N
  • InChI=1/Ge3N4/c4-1-7(2-5)3-6
    Key: BIXHRBFZLLFBFL-UHFFFAOYAE
  • N#[Ge]N([Ge]#N)[Ge]#N
Properties
Ge3N4
Molar mass 273.947 g/mol
Appearance Colorless crystalline solid
Density 5.25 g/cm3
Boiling point 900 °C (1,650 °F; 1,170 K) (decomposes)
Related compounds
Other anions
 Germanium phosphide
Other cations
 Carbon nitride
Silicon nitride
Gallium nitride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Germanium(IV) nitride is an inorganic compound with the chemical formula Ge3N4. It can be produced through the reaction of germanium and ammonia:

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. The γ-form, which forms under high pressure, has a spinel structure.

References

  1. ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. doi:10.1016/C2009-0-30414-6. ISBN 978-0-08-037941-8.
  2. ↑ 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.
  3. ↑ 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.