Chemistry:Lanthanum nitride
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| Names | |
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| IUPAC name
Azanylidynelanthanum
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| Other names
Lanthanum mononitride, lanthanum(III) nitride
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| 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 | |
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| GHS Signal word | Warning |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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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:
- 2 LaH
3 + N
2 → 2 LaN + 3 H
2
It can also be prepared from the reaction of ammonia and lanthanum trihydride:[3]
- LaH
3 + NH
3 → LaN + 3 H
2
The reaction of nitrogen and lanthanum amalgam can also work:[4]
- La + ½ N
2 → LaN (1000 - 1400 °C)
Ammonia is more reactive than N2 gas, so the synthesis works at lower temperatures:
- La + NH
3 → LaN + 1.5 H
2 (700 °C)
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 + 3 H
2O → La(OH)
3 + NH
3
It reacts with acids:
- LaN + 4 HCl → LaCl
3 + NH
4Cl
Uses
LaN is used as a LED material, magnetic material, and in semiconductors, refractory materials, dyes, and catalysts.[7]
References
- ↑ 1.0 1.1 "Lanthanum Nitride" (in en). American Elements. https://www.americanelements.com/lanthanum-nitride-25764-10-7.
- ↑ Derz, Friedrich W. (18 May 2020) (in en). H-Z. Walter de Gruyter GmbH & Co KG. p. 1179. ISBN 978-3-11-232209-3. https://books.google.com/books?id=-HTsDwAAQBAJ&dq=lanthanum+nitride&pg=PA1179. Retrieved 8 February 2024.
- ↑ Foster, L. S. (1945) (in en). The Preparation of Crucibles from Nitrides. U.S. Atomic Energy Commission. Technical Information Service. p. 8. https://books.google.com/books?id=GNDJKHX1aOIC&dq=lanthanum+nitride&pg=PA8. Retrieved 8 February 2024.
- ↑ Young, R. A.; Ziegler, W. T. (November 1952). "Crystal Structure of Lanthanum Nitride 1,2" (in en). Journal of the American Chemical Society 74 (21): 5251–5253. doi:10.1021/ja01141a004. ISSN 0002-7863. https://pubs.acs.org/doi/pdf/10.1021/ja01141a004. Retrieved 8 February 2024.
- ↑ Young, R. A.; Ziegler, W. T. (November 1952). "Crystal Structure of Lanthanum Nitride 1,2" (in en). Journal of the American Chemical Society 74 (21): 5251–5253. doi:10.1021/ja01141a004. ISSN 0002-7863. https://pubs.acs.org/doi/10.1021/ja01141a004. Retrieved 8 February 2024.
- ↑ "Lanthanum Nitride Powder, LaN, CAS 25764-10-7 - Heeger Materials" (in en-us). Heeger Materials Inc.. https://heegermaterials.com/nitride-powder/1676-cobalt-nitride-powder-con-cas-12139-70-7.html.
- ↑ 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). doi:10.1063/5.0055515. Bibcode: 2021AIPA...11f5312D. https://pubs.aip.org/aip/adv/article/11/6/065312/994237/Semiconducting-character-of-LaN-Magnitude-of-the. Retrieved 8 February 2024.
Salts and covalent derivatives of the nitride ion
| NH3 | He(N2)11 | ||||||||||||||||
| Li3N | Be3N2 | BN | β-C3N4 g-C3N4 |
N2 | NxOy | NF3 | Ne | ||||||||||
| Na3N | Mg3N2 | AlN | Si3N4 | PN P3N5 |
SxNy SN S4N4 |
NCl3 | Ar | ||||||||||
| K3N | Ca3N2 | ScN | TiN | VN | CrN Cr2N |
MnxNy | FexNy | CoN | Ni3N | CuN | Zn3N2 | GaN | Ge3N4 | As | Se | NBr3 | Kr |
| Rb3N | Sr3N2 | YN | ZrN | NbN | β-Mo2N | Tc | Ru | Rh | PdN | Ag3N | CdN | InN | Sn | Sb | Te | NI3 | Xe |
| Cs3N | Ba3N2 | Hf3N4 | TaN | WN | Re | Os | Ir | Pt | Au | Hg3N2 | TlN | Pb | BiN | Po | At | Rn | |
| Fr3N | Ra3N | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |
| ↓ | |||||||||||||||||
| La | CeN | Pr | Nd | Pm | Sm | Eu | GdN | Tb | Dy | Ho | Er | Tm | Yb | Lu | |||
| Ac | Th | Pa | UN | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | |||
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