Chemistry:Europium(III) nitride

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Europium(III) nitride
Names
Other names
Europium mononitride, azanylidyneuropium, nitridoeuropium
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 234-659-2
Properties
EuN
Molar mass 165.971 g·mol−1
Appearance black crystals
Density 6.57 g/cm3
reacts with water
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Europium(III) nitride is a binary inorganic compound of europium and nitrogen with the chemical formula EuN.[1]

Synthesis

Europium(III) nitride can be produced via the reaction of elemental europium in an ammonia stream in corundum boats in silica glass tubes. The reaction takes place at 700 °C.[2]

2Eu + 2NH
3 → 2EuN + 3H
2

In this reaction, europium is oxidized and the hydrogen in ammonia is reduced.

Physical properties

Europium(III) nitride shows Van Vleck paramagnetism[3] and crystallizes in the rock salt structure with a = 501.779(6) pm.[4][5][6] Thin films of rare earth nitrides, including europium(III) nitride, tend to form oxides in the presence of oxygen.[7] The enthalpy of formation of EuN is: ΔH0 = 217.6±25.1 kJ/mol.[8] The band gap for europium(III) nitride was calculated to be 2.08 eV.[9]

Europium(III) nitride forms black crystals and reacts with water.

Uses

EuN is a semiconductor.[10]

References

  1. ↑ "Europium Nitride" (in en). American Elements. https://www.americanelements.com/europium-nitride-12020-58-5. 
  2. ↑ Klemm, W.; Winkelmann, G. (November 1956). "Zur Kenntnis der Nitride der Seltenen Erdmetalle". Zeitschrift für anorganische und allgemeine Chemie 288 (1–2): 87–90. doi:10.1002/zaac.19562880112. https://onlinelibrary.wiley.com/doi/10.1002/zaac.19562880112. Retrieved 31 January 2024. 
  3. ↑ Busch, G.; Junod, P.; Levy, F.; Menth, A.; Vogt, O. (February 1965). "Influence of crystal fields on the magnetic properties of the rare-earth nitrides". Physics Letters 14 (4): 264–266. doi:10.1016/0031-9163(65)90190-3. Bibcode: 1965PhL....14..264B. https://www.sciencedirect.com/science/article/abs/pii/0031916365901903. Retrieved 31 January 2024. 
  4. ↑ Larson, P.; Lambrecht, Walter R. L.; Chantis, Athanasios; van Schilfgaarde, Mark (16 January 2007). "Electronic structure of rare-earth nitrides using the LSDA + U approach: Importance of allowing 4 f orbitals to break the cubic crystal symmetry". Physical Review B 75 (4): 045114. doi:10.1103/PhysRevB.75.045114. Bibcode: 2007PhRvB..75d5114L. https://journals.aps.org/prb/abstract/10.1103/PhysRevB.75.045114. Retrieved 31 January 2024. 
  5. ↑ (in en) Standard X-ray Diffraction Powder Patterns. U.S. Department of Commerce, National Bureau of Standards. 1953. p. 56. https://books.google.com/books?id=kFAM9FKYsIkC&dq=%22Europium+nitride+EuN%22&pg=RA4-PA56. Retrieved 31 January 2024. 
  6. ↑ Suehiro, T.; Hirosaki, N.; Wada, T.; Yajima, Y.; Mitomo, M. (Mar 2005). "Europium nitride synthesized by direct nitridation with ammonia" (in en). Powder Diffraction 20 (1): 40–42. doi:10.1154/1.1835963. ISSN 1945-7413. Bibcode: 2005PDiff..20...40S. https://www.cambridge.org/core/journals/powder-diffraction/article/abs/europium-nitride-synthesized-by-direct-nitridation-with-ammonia/50807B3AA0F7CB5639E0BDCA8CC6144F. 
  7. ↑ Ruck, B. J.; Natali, F.; Plank, N. O. V.; Do Le, Binh; Azeem, M.; Alfheid, Maha; Meyer, C.; Trodahl, H. J. (2012-08-01). "The influence of nitrogen vacancies on the magnetic behaviour of rare-earth nitrides". Physica B: Condensed Matter. 26th International Conference on Defects in Semiconductors 407 (15): 2954–2956. doi:10.1016/j.physb.2011.08.004. ISSN 0921-4526. Bibcode: 2012PhyB..407.2954R. https://www.sciencedirect.com/science/article/pii/S0921452611007423. 
  8. ↑ Kordis, J.; Gingerich, K. A.; Kaldis, E. (1973-11-01). "Heat of Vaporization of EuN and Its Standard Heat of Formation" (in en). Journal of the American Ceramic Society 56 (11): 581–583. doi:10.1111/j.1151-2916.1973.tb12420.x. https://onlinelibrary.wiley.com/doi/10.1111/j.1151-2916.1973.tb12420.x. 
  9. ↑ Sclar, N. (1962-10-01). "Energy Gaps of the III–V and the (Rare Earth)-V Semiconductors". Journal of Applied Physics 33 (10): 2999–3002. doi:10.1063/1.1728552. ISSN 0021-8979. Bibcode: 1962JAP....33.2999S. https://doi.org/10.1063/1.1728552. 
  10. ↑ "Europium nitride: a novel diluted magnetic semiconductor" (in en). ESRF. https://www.esrf.fr/home/news/spotlight/content-news/spotlight/spotlight205.html#:~:text=Europium%20nitride%20(EuN)%20is%20a,in%20the%20Eu3%2B%20ion.. 
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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