Neodymium(II) iodide

Neodymium(II) iodide or neodymium diiodide is an inorganic salt of iodine and neodymium the formula NdI2. Neodymium uses the +2 oxidation state in the compound.

Neodymium(II) iodide
Names
IUPAC name
Diiodoneodymium
Other names
Neodymium diiodide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.150.931
EC Number
  • 622-142-8
  • InChI=1S/2HI.Nd/h2*1H;/p-2
    Key: XKFMXEILCPYOQT-UHFFFAOYSA-L
  • [I-].[I-].[Nd]
Properties
NdI2
Molar mass 398.05
Hazards
GHS labelling:
[1]
Warning[1]
Related compounds
Other anions
 Neodymium acetate, Neodymium hydride, Neodymium nickelate
Other cations
 samarium iodide, lanthanum iodide, europium iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Formation

Neodymium(II) iodide can be made by heating molten neodymium(III) iodide with neodymium metal at 800 and 580°C for 12 hours.[2]

Properties

Neodymium(II) iodide is not stoichiometric, and has a formula of closer to NdI1.95.[2] Neodymium(II) iodide melts at 562°C.[3] It is a violet compound.

Neodymium(II) iodide is an electrical insulator.[2]

Reactions

Neodymium(II) iodide reacts with organohalides by extracting the halogen, resulting in dimers, oligomers or reactions with the solvent.[4]

Solvates are known with tetrahydrofuran and dimethoxyethane: NdI2(THF)2 and NdI2(DME)2[5]

Neodymium(II) iodide reduces hot nitrogen to form an iodide nitride: (NdI2)3N which with THF also gives (NdI)3N2.[6]

It reacts with cyclopentadiene in THF to give CpNdI2(THF)3.[7]

See also

References
  1. See https://pubchem.ncbi.nlm.nih.gov/compound/Neodymium_II_-iodide
  2. Sallach, Robert A.; Corbett, John D. (July 1964). "Magnetic Susceptibilities of Neodymium (II) Chloride and Iodide". Inorganic Chemistry. 3 (7): 993–995. doi:10.1021/ic50017a015.
  3. Druding, Leonard F.; Corbett, John D. (June 1961). "Lower Oxidation States of the Lanthanides. Neodymium(II) Chloride and Iodide 1". Journal of the American Chemical Society. 83 (11): 2462–2467. doi:10.1021/ja01472a010.
  4. Fagin, Anatolii A.; Balashova, Tatyana V.; Kusyaev, Dmitrii M.; Kulikova, Tatyana I.; Glukhova, Tatyana A.; Makarenko, Natalya P.; Kurskii, Yurii A.; Evans, William J.; Bochkarev, Mikhail N. (March 2006). "Reactions of neodymium(II) iodide with organohalides". Polyhedron. 25 (5): 1105–1110. doi:10.1016/j.poly.2005.08.050.
  5. Bochkarev, Mikhail N.; Fagin, Anatolii A. (24 September 1999). "A New Route to Neodymium(II) and Dysprosium(II) Iodides". Chemistry a European Journal. 5 (10): 2990–2992. doi:10.1002/(SICI)1521-3765(19991001)5:10<2990::AID-CHEM2990>3.0.CO;2-U.
  6. Fagin, A. A.; Salmova, S. V.; Bochkarev, M. N. (January 2009). "Reduction of nitrogen with neodymium(II) and dysprosium(II) diiodides and selected properties of the resulting nitrides". Russian Chemical Bulletin. 58 (1): 230–233. doi:10.1007/s11172-009-0034-2. S2CID 98798042.
  7. Khoroshen'kov, G. V.; Fag, A. A.; Bochkarev, M. N.; Dechert, S.; Schumann, H. (1 August 2003). "Reactions of neodymium(ii), dysprosium(ii), and thulium(ii) diiodides with cyclopentadiene. Molecular structures of complexes CpTmI2(THF)3 and [NdI2(THF)5]+[NdI4(THF)2]–". Russian Chemical Bulletin. 52 (8): 1715–1719. doi:10.1023/A:1026132017155. S2CID 91646257.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.