A New Route to Neodymium(II) and Dysprosium(II) Iodides

✍ Scribed by Mikhail N. Bochkarev; Anatolii A. Fagin

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 74 KB
• Volume: 5
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/(sici)1521-3765(19991001)5:10<2990::aid-chem2990>3.0.co;2-u

✦ Synopsis

Microcrystalline molecular iodides of neodymium(ii) and dysprosium(ii), LnI 2 (THF) 5 and LnI 2 (DME) 3 (Ln Dy, Nd) have been obtained by heating a mixture of the appropriate metal with iodine, subsequently dissolving the products in THF or DME, and crystallization at low temperature. Prolonged drying of DyI 2 (THF) 5 in vacuum yielded a violet powder of composition DyI 2 (THF) 3 . These crystalline complexes are thermally stable, but in the solution their stability is lower. Both NdI 2 and DyI 2 , as well as TmI 2 , dissolve in liquid NH 3 to give unstable blue solutions.