Ca4As3 – a new binary calcium arsenide

Acta Crystallographica Section E: Crystallographic Communications

Andrea V. Hoffmann¹  Viktor Hlukhyy¹  Thomas F. Fässler¹ 

[1] Technische Universität München, Department of Chemistry, Lichtenbergstr. 4, 85747 Garching, Germany;

关键词: crystal structure;    arsenide;    Zintl phase;   

DOI  :  10.1107/S2056989015022367

来源: DOAJ

【 摘 要 】

The crystal structure of the binary compound tetracalcium triarsenide, Ca4As3, was investigated by single-crystal X-ray diffraction. Ca4As3 crystallizes in the Ba4P3 structure type and is thus a homologue of isotypic Sr4As3. The unit cell contains 32 Ca2+ cations, 16 As3− isolated anions and four centrosymmetric [As2]4– dumbbells. The As atomsin each of the dumbbells are connected by a single bond, thus this calcium arsenide is a Zintl phase.

【 授权许可】

Unknown