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2005
Structure
D 2000
04- 007
Reactions of Alkaline Earth Metals and Nitrogen in Sealed Niobium Ampules:
The Formation of MgZn2 Type Intermetallic Phases in the Presence of Nitrogen
and the New Compound Ba5[NbN4]N. — Transparent, orange plates of Ba5[NbN4]N
are synthesized from a mixture of Ba2N and NaN 3 in a molar ratio of 1:2 inside a Nb
container (625 °C, 10 d). As revealed by single crystal XRD the compound crystallizes
in the space group C2/m with Z = 4. The structures of MMg2 (M: Ca, Yb, Sr, Eu, Ba)
are redetermined by single crystal XRD. These compounds crystallize in the space
group P63/mmc with Z = 4. — (RECKEWEG*, O.; LIND, C.; SIMON, A.; DISALVO,
F. J.; J. Alloys Compd. 384 (2004) 1-2, 98-105; MPI Festkoerperforsch., D-70569
Stuttgart, Germany; Eng.) — W. Pewestorf
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