Ca4As3 - A new binary calcium arsenide

Andrea V. Hoffmann, Viktor Hlukhyy, Thomas F. Fässler

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


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 atoms in each of the dumbbells are connected by a single bond, thus this calcium arsenide is a Zintl phase.

Original languageEnglish
Pages (from-to)1548-1550
Number of pages3
JournalActa Crystallographica Section E: Crystallographic Communications
StatePublished - 2015


  • Zintl phase
  • arsenide
  • crystal structure


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