Lanthanum nitride

"LaN" redirects here. For other uses, see Lan.
Lanthanum nitride
Names
IUPAC name
Azanylidynelanthanum
Other names
Lanthanum mononitride, lanthanum(III) nitride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.042.936 Edit this at Wikidata
EC Number
  • 247-245-1
  • InChI=1S/La.N
    Key: QCLQZCOGUCNIOC-UHFFFAOYSA-N
  • [La+3].[N-3]
Properties
LaN
Molar mass 152.912 g·mol−1
Appearance Black powder
Density 6.73 g/cm3
Melting point 2,450 °C (4,440 °F; 2,720 K)
Insoluble
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P264, P271, P280, P302, P304, P305, P312, P313, P332, P338, P340, P351, P352, P362, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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

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

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. ^ 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.

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