Germanium nitride

Germanium nitride
Names
	IUPAC name Germanium(IV) nitride
Identifiers
CAS Number	12065-36-0;
3D model (JSmol)	Interactive image;
ChemSpider	17617086;
ECHA InfoCard	100.031.864
PubChem CID	16684757;
CompTox Dashboard (EPA)	DTXSID00923508 ;
	InChI 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;
	SMILES N#[Ge]N([Ge]#N)[Ge]#N;
Properties
Chemical formula	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	Germanium phosphide
Other cations	Silicon nitride ; Gallium nitride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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.

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[1] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. 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.

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Germanium nitride

Structure

References

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