Neodymium(Ii) Chloride

Neodymium(II) chloride
Names
	Other names Neodymium dichloride
Identifiers
3D model (JSmol)	Interactive image;
ChemSpider	64878486;
PubChem CID	57376283;
	InChI InChI=1S/2ClH.Nd/h2*1H;/p-2 Key: YATFJWWYFCCTHZ-UHFFFAOYSA-L;
	SMILES [Cl-].[Cl-].[Nd+2];
Properties
Chemical formula	NdCl2
Molar mass	215.14 g/mol
Appearance	Black solid
Structure
Crystal structure	Orthorhombic
Space group	Pnma, No. 62
Related compounds
Other anions	Neodymium(II) bromide; Neodymium(II) iodide
Other cations	SmCl2, EuCl2, DyCl2, TmCl2, YbCl2,
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Neodymium(II) chloride or neodymium dichloride is a chemical compound of neodymium and chlorine with the formula NdCl₂.

Preparation

Neodymium(II) chloride can be prepared by reducing neodymium(III) chloride with lithium metal/naphthalene or lithium chloride in THF.^[2]

Reduction of neodymium(III) chloride with neodymium metal at temperatures above 650 °C also yields neodymium(II) chloride:^[3]

2 NdCl₃ + Nd → 3 NdCl₂

Structure

Neodymium(II) chloride adopts the PbCl₂ (cotunnite) structure. Each Nd²⁺ ion is coordinated by nine Cl⁻ ions in a tricapped trigonal prismatic arrangement. Seven of the Nd-Cl distances are in the range 2.95-3.14 Å while two are longer at 3.45 Å.^[4]^[5]

References

↑ Brauer, Georg; Baudler, Marianne (1975). Handbuch der Präparativen Anorganischen Chemie, Band I. (3rd ed.). Stuttgart: Ferdinand Enke. ISBN 3-432-02328-6.
↑ Rossmainth, K. (1979-07-01). "Herstellung von Neodym(II)-chlorid in Lösung". Monatshefte für Chemie - Chemical Monthly 110 (4): 1019–1023. doi:10.1007/BF00906697.
↑ Gerd Meyer, Lester R. Morss (1991). Synthesis of lanthanide and actinide compounds. Springer. p. 161. ISBN 0-7923-1018-7. https://books.google.com/books?id=bnS5elHL2w8C&pg=PA161.
↑ Meyer, Gerd; Schleid, Thomas (1985). "Zweiwertiges Neodym: NdCl₂ und KNd₂Cl₅". Z. anorg. allg. Chem. 528 (9): 55–60. doi:10.1002/zaac.19855280906.
↑ "ICSD Entry: 48206". Cambridge Crystallographic Data Centre. https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=1614665&DatabaseToSearch=Published.

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[1] Brauer, Georg; Baudler, Marianne (1975). Handbuch der Präparativen Anorganischen Chemie, Band I. (3rd ed.). Stuttgart: Ferdinand Enke. ISBN 3-432-02328-6.

[2] Rossmainth, K. (1979-07-01). "Herstellung von Neodym(II)-chlorid in Lösung". Monatshefte für Chemie - Chemical Monthly 110 (4): 1019–1023. doi:10.1007/BF00906697.

[3] Gerd Meyer, Lester R. Morss (1991). Synthesis of lanthanide and actinide compounds. Springer. p. 161. ISBN 0-7923-1018-7. https://books.google.com/books?id=bnS5elHL2w8C&pg=PA161.

[4] Meyer, Gerd; Schleid, Thomas (1985). "Zweiwertiges Neodym: NdCl₂ und KNd₂Cl₅". Z. anorg. allg. Chem. 528 (9): 55–60. doi:10.1002/zaac.19855280906.

[5] "ICSD Entry: 48206". Cambridge Crystallographic Data Centre. https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=1614665&DatabaseToSearch=Published.