Large- and Small-Scale Syntheses of Donor-Free Rare-Earth Triiodides from the Metals and Ammonium Iodide.
Inorg Chem
; 63(36): 16855-16860, 2024 Sep 09.
Article
em En
| MEDLINE
| ID: mdl-39183574
ABSTRACT
Rare-earth triiodides free of donor solvents, LnI3 (Ln = Sc, Y, La-Lu), have been prepared in quantities as high as 76 g and in yields between 72% (Sc) and 98% (La) by the reaction between the corresponding metal and excess ammonium iodide in a two-step, one-pot procedure that is conducted in borosilicate glassware at temperatures of 350-430 °C in commercial tube furnaces. Procedures for both large-scale and small-scale syntheses are described, with specific examples for Ln = Sc, Y, La, Pr, Nd, Gd, Dy, Ho, and Lu. While the large-scale synthesis described here utilizes specialized glassware, the small-scale preparation may be performed in commercially available glassware.
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MEDLINE
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En
Ano de publicação:
2024
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Article