Zinc nitride

Zinc nitride

Identifiers
CAS Number	1313-49-1 Y
3D model ( JSmol )	Interactive image
ECHA InfoCard	100.013.826
EC Number	215-207-3
PubChem CID	12130759
UNII	7OOJ6UE14L Y
CompTox Dashboard (EPA)	DTXSID001014317
InChI InChI=1S/2N.3Zn/q2*-1;;;+2 Key: AKJVMGQSGCSQBU-UHFFFAOYSA-N
SMILES [N-]=[Zn].[N-]=[Zn].[Zn+2]
Properties
Chemical formula	Zn3N2
Molar mass	224.154 g/mol
Appearance	blue-gray cubic crystals[1]
Density	6.22 g/cm3, solid[1]
Melting point	decomposes 700°C[1]
Solubility in water	insoluble, reacts
Structure
Crystal structure	Cubic, cI80
Space group	Ia-3, No. 206[2]
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319
Precautionary statements	P264, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362
NFPA 704 (fire diamond)	1 0 2 W
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Zinc nitride (Zn₃N₂) is an inorganic compound of zinc and nitrogen, usually obtained as (blue)grey crystals. It is a semiconductor. In pure form, it has the anti-bixbyite structure.

Chemical properties

Zinc nitride can be obtained by thermally decomposing zincamide (zinc diamine)^[3] in an anaerobic environment, at temperatures in excess of 200 °C. The by-product of the reaction is ammonia.^[4]

3Zn(NH₂)₂ → Zn₃N₂ + 4NH₃

It can also be formed by heating zinc to 600

3

chemical vapour deposition of Bis(bis(trimethylsilyl)amido]zinc with ammonia gas onto silica or ZnO coated alumina at 275 to 410 °C.^[8]

The crystal structure is anti-

isomorphous with Manganese(III) oxide. (bixbyite).^[2][7] The heat of formation is c. 24 kilocalories (100 kJ) per mol.^[7] It is a semiconductor with a reported bandgap of c. 3.2eV,^[9] however, a thin zinc nitride film prepared by electrolysis of molten salt mixture containing Li₃N with a zinc electrode showed a band-gap of 1.01 eV.^[10]

Zinc nitride reacts violently with

water to form ammonia and zinc oxide.^[3][4]

Zn₃N₂ + 3

H₂O → 3ZnO + 2NH₃

Zinc nitride reacts with lithium (produced in an electrochemical cell) by insertion. The initial reaction is the irreversible conversion into LiZn in a matrix of beta-Li₃N. These products then can be converted reversibly and electrochemically into LiZnN and metallic Zn.^[11][12]

See also

• Nitride
• Zinc nitrate

References

1. ^ ^{a b c d} CRC Handbook of Chemistry and Physics (96 ed.), §4-100 Physical Constants of Inorganic Compounds
2. ^
   doi:10.1006/jssc.1997.7407
   .
3. ^
   Roscoe, H. E.; Schorlemmer, C. (1907) [1878]. A Treatise on Chemistry: Volume II, The Metals (4th ed.). London: Macmillan
   . pp. 650–651. Retrieved 2007-11-01.
4. ^ ^{a b} Bloxam, C. L. (1903). Chemistry, Inorganic and Organic (9th ed.). Philadelphia: P. Blakiston's Son & Co. p. 380. Retrieved 2007-10-31.
5. ^
   Lowry, M. T. (1922). Inorganic Chemistry. Macmillan
   . p. 872. Retrieved 2007-11-01.
6. ^ ^{a b} Maxtead, E.B. (1921), Ammonia and the Nitrides, pp. 69–20
7. ^ ^{a b c} Mellor, J.W. (1964), A Comprehensive Treatise on Inorganic and Theoretical Chemistry, vol. 8, Part 1, pp. 160–161
8. doi:10.1002/cvde.200506383
9. S2CID 123496085
10. doi:10.1016/j.tsf.2005.06.057
11. ISBN 978-1-4020-7628-2
    . Retrieved 2007-11-01.
12. doi:10.1149/1.1446079

Further reading

• Futsuhara, M.; Yoshioka, K.; Takai, O. (1998). "Structural, electrical and optical properties of zinc nitride thin films prepared by reactive RF magnetron sputtering". Thin Solid Films. 322 (1): 274–281.
  doi:10.1016/S0040-6090(97)00910-3
  .
• Lyutaya, M. D.; Bakuta, S. A. (1980). "Synthesis of the nitrides of Group II elements". Powder Metallurgy and Metal Ceramics. 19 (2): 118–122.
  S2CID 93036462
  .
• Wu, P.; Tiedje, T. (2016). "Molecular beam epitaxy growth and optical properties of single crystal Zn3N2 films".
  S2CID 99713171
  .

External links

• Material Safety Data Sheet from GFS Chemicals