my-server
← Wiki

Neodymium(II) chloride

Neodymium(II) chloride or neodymium dichloride is a chemical compound of neodymium and chlorine with the formula NdCl<sub>2</sub>.

Preparation

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

Reduction of neodymium(III) chloride with neodymium metal at temperatures above 650&nbsp;°C also yields neodymium(II) chloride:

2 NdCl<sub>3</sub> + Nd → 3 NdCl<sub>2</sub>

Structure

Neodymium(II) chloride adopts the PbCl<sub>2</sub> (cotunnite) structure. Each Nd<sup>2+</sup> ion is coordinated by nine Cl<sup>&minus;</sup> 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.

References