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