"LaN" redirects here. For other uses, see Lan.

Lanthanum nitride is a binary inorganic compound of lanthanum and nitride with the chemical formula LaN.[1][2]

Preparation

Lanthanum nitride can be prepared from the reaction of nitrogen and lanthanum trihydride:

2LaH3 + N2 → 2LaN + 3H2

It can also be prepared from the reaction of ammonia and lanthanum trihydride:[3]

LaH3 + NH3 → LaN + 3H2

The reaction of nitrogen and lanthanum amalgam can also work:[4]

2La + N2 → 2LaN

Physical properties

Lanthanum nitride forms black powder that is insoluble in water.[1] Their crystals are of the cubic system with the Fm3m space group.[5]

It is paramagnetic.

Chemical properties

Lanthanum nitride reacts with water and moisture from the air:[6]

LaN + 3H2O → La(OH)3 + NH3

It reacts with acids:

LaN + 4HCl → LaCl3 + NH4Cl

Uses

LaN is used as a LED material, magnetic material, semiconductor, refractory material, dyes, catalyst.[7][8]

References

  1. ^ a b "Lanthanum Nitride". American Elements. Retrieved 8 February 2024.
  2. ^ Derz, Friedrich W. (18 May 2020). H-Z. Walter de Gruyter GmbH & Co KG. p. 1179. ISBN 978-3-11-232209-3. Retrieved 8 February 2024.
  3. ^ Foster, L. S. (1945). The Preparation of Crucibles from Nitrides. U.S. Atomic Energy Commission. Technical Information Service. p. 8. Retrieved 8 February 2024.
  4. ^ Young, R. A.; Ziegler, W. T. (November 1952). "Crystal Structure of Lanthanum Nitride 1,2". Journal of the American Chemical Society. 74 (21): 5251–5253. doi:10.1021/ja01141a004. ISSN 0002-7863. Retrieved 8 February 2024.
  5. ^ Young, R. A.; Ziegler, W. T. (November 1952). "Crystal Structure of Lanthanum Nitride 1,2". Journal of the American Chemical Society. 74 (21): 5251–5253. doi:10.1021/ja01141a004. ISSN 0002-7863. Retrieved 8 February 2024.
  6. ^ "Lanthanum Nitride Powder, LaN, CAS 25764-10-7 - Heeger Materials". Heeger Materials Inc. Retrieved 8 February 2024.
  7. ^ "Lanthanum Nitride (LaN) Powder (CAS No. 25764-10-7)". samaterials.com. Retrieved 8 February 2024.
  8. ^ Deng, Zihao; Kioupakis, Emmanouil (1 June 2021). "Semiconducting character of LaN: Magnitude of the bandgap and origin of the electrical conductivity". AIP Advances. 11 (6). arXiv:2106.04646. Bibcode:2021AIPA...11f5312D. doi:10.1063/5.0055515. S2CID 235376911. Retrieved 8 February 2024.