Neodymium(II) chloride

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Neodymium(II) chloride
Names
Other names
Neodymium dichloride
Identifiers
3D model (JSmol)
ChemSpider
PubChem CID
  • InChI=1S/2ClH.Nd/h2*1H;/p-2
    Key: YATFJWWYFCCTHZ-UHFFFAOYSA-L
  • [Cl-].[Cl-].[Nd+2]
Properties
NdCl2
Molar mass 215.14 g/mol
AppearanceBlack solid [1]
Structure
Orthorhombic
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).
Crystal structure of the mineral cotunnite (lead(II) chloride, PbCl2; orthorhombic, Pnam) with one Pb coordination polyhedron showing the ninefold chlorine coordination sphere. Cotunnite structure.png
Crystal structure of the mineral cotunnite (lead(II) chloride, PbCl2; orthorhombic, Pnam) with one Pb coordination polyhedron showing the ninefold chlorine coordination sphere.

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

Contents

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]

Related Research Articles

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Neodymium compounds are compounds formed by the lanthanide metal neodymium (Nd). In these compounds, neodymium generally exhibits the +3 oxidation state, such as NdCl3, Nd2(SO4)3 and Nd(CH3COO)3. Compounds with neodymium in the +2 oxidation state are also known, such as NdCl2 and NdI2. Some neodymium compounds have colors that vary based upon the type of lighting.

Praseodymium compounds are compounds formed by the lanthanide metal praseodymium (Pr). In these compounds, praseodymium generally exhibits the +3 oxidation state, such as PrCl3, Pr(NO3)3 and Pr(CH3COO)3. However, compounds with praseodymium in the +2 and +4 oxidation states, and unlike other lanthanides, the +5 oxidation state, are also known.

<span class="mw-page-title-main">Neodymium(II) iodide</span> Chemical compound

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.

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Carbide chlorides are mixed anion compounds containing chloride anions and anions consisting entirely of carbon. In these compounds there is no bond between chlorine and carbon. But there is a bond between a metal and carbon. Many of these compounds are cluster compounds, in which metal atoms encase a carbon core, with chlorine atoms surrounding the cluster. The chlorine may be shared between clusters to form polymers or layers. Most carbide chloride compounds contain rare earth elements. Some are known from group 4 elements. The hexatungsten carbon cluster can be oxidised and reduced, and so have different numbers of chlorine atoms included.

Lanthanide chlorides are a group of chemical compounds that can form between a lanthanide element and chlorine. The lanthanides in these compounds are usually in the +2 and +3 oxidation states, although compounds with lanthanides in lower oxidation states exist.

References

  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" [Preparation of neodymium(II) chloride in solution]. Monatshefte für Chemie - Chemical Monthly. 110 (4): 1019–1023. doi:10.1007/BF00906697. S2CID   99130833.
  3. Gerd Meyer, Lester R. Morss (1991). Synthesis of lanthanide and actinide compounds. Springer. p. 161. ISBN   0-7923-1018-7.
  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 Structural Database: Access Structures. Cambridge Crystallographic Data Centre . Retrieved 2021-06-06.