Neodymium nitride

Neodymium nitride or neodymium(III) nitride is a chemical compound of neodymium and nitrogen with the formula NdN in which neodymium exhibits the +3 oxidation state and nitrogen exhibits the -3 oxidation state. It is ferromagnetic, like gadolinium(III) nitride, terbium(III) nitride and dysprosium(III) nitride.[2] Neodymium nitride is not usually stoichiometric, and it is very hard to create pure stoichiometric neodymium nitride.[3]

Neodymium(III) nitride
Names
Other names
Neodymium trinitride, azanylidyneneodymium
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.042.937
EC Number
  • 247-246-7
  • InChI=1S/N.Nd[1]
    Key: OVMJQLNJCSIJCH-UHFFFAOYSA-N[1]
  • N#[Nd]
Properties
NdN
Molar mass 158.25 g/mol[1]
Hazards
GHS labelling:
GHS07: Exclamation mark
Related compounds
Other anions
 Neodymium(III) arsenide
Neodymium(III) phosphide
Neodymium(III) antimonide
Neodymium(III) bismuthide
Neodymium(III) oxide
Other cations
 PrN
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Preparation

Neodymium nitride can be prepared via an exothermic metathesis reaction between lithium nitride and anhydrous neodymium(III) chloride. Lithium chloride formed in the reaction can be removed by THF, a chemical in which lithium chloride dissolves in.[4]

NdCl3 + Li3N → NdN + 3 LiCl

It can also be prepared directly when neodymium reacts directly with nitrogen:

2 Nd + N2 → 2 NdN

It can be prepared when decomposing neodymium amide:

Nd(NH2)3 → NdN + N2 + 3H2

It can also be produced when neodymium is ignited in air (which contains nitrogen),[5] but this also produces other compounds, such as neodymium oxide.

See also

References
  1. "Neodymium nitride (NDN)".
  2. Temmerman, W. M. (2009). "Chapter 241: The Dual, Localized or Band‐Like, Character of the 4f‐States". In Gschneider Jr., K. A. (ed.). Handbook on the Physics and Chemistry of Rare Earths vol 39. Elsevier. pp. 100–110. ISBN 978-0-444-53221-3.
  3. Nasirpouri, Farzad and Nogaret, Alain (eds.) (2011) Nanomagnetism and Spintronics: Fabrication, Materials, Characterization and Applications. World Scientific. ISBN 9789814273053
  4. Fitzmaurice, J.C.; Hector, A.; Rowley, A.T.; Parkin, I.P. (1994). "Rapid, low energy synthesis of lanthanide nitrides". Polyhedron. Elsevier BV. 13 (2): 235–240. doi:10.1016/s0277-5387(00)86597-3. ISSN 0277-5387.
  5. Cotton, Simon (2006). Lanthanide and Actinide Chemistry. John Wiley & Sons Ltd.
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