Amidometallate von Lanthan und Gadolinium und Umsetzung von Lanthan,Gadolinium und Scandium mit Ammoniak

Amidometallates of Lanthanum and Gadolinium and the Conversion of Lanthanum, Gadolinium, and Scandium with Ammonia By reaction of the metals with NsNH₂ and NH₃ in the hightemperature- autoclave Na₃La(NH₂)₆], Na₃Gd(NH₂)₆], and NaGd(NH₂)₄] were prepared, but not any compound of Sc. By corresponding experiments with NH₄I only La(NH₂)₃, GdN, and ScH₂ were obtained. Na₃La(NH₂)₆] and Na₃Gd(NH₂)₆] are isotypic with Na₃Y(KH₂)₆], NaGd(NH₂)₄] with NaYb((NH₂)₄]. The thermal behaviour of the prepared amides was characterized by DTA and tensimetry.