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Calcium arsenide

Calcium arsenide
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 248-169-1
  • InChI=1S/As.Ca
    Key: GSYZQGSEKUWOHL-UHFFFAOYSA-N
  • [Ca+2].[As-2][As-2].[Ca+2]
Properties
CaAs
Molar mass 115.00
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Calcium arsenide is an inorganic compound with the chemical formula Ca2As2 and is one of the arsenides of calcium.[1] It is a hexagonal crystal with a space group of P62m. It is isostructural with sodium peroxide and can be expressed as (Ca2+)2(As-As)4−.[2] It reacts with sodium monoarsenide and silicon in a tantalum container to obtain Na4Ca2SiAs4.[3] It reacts with potassium arsenide, iron arsenide and calcium fluoride at high temperature to obtain KCa2Fe4As4F2.[4]

References

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  1. ^ Villars, P.; Cenzual, K.; Gladyshevskii, R. (2017). Handbook of Inorganic Substances 2017. De Gruyter. p. 84. ISBN 978-3-11-043655-6. Archived from the original on 2021-12-09. Retrieved 2021-12-09.
  2. ^ L'Haridon, Paul; Guyader, Jean; Hamon, Mireille. Refinement of the calcium monoarsenide structure(in French). Revue de Chimie Minerale, 1976. 13 (2): 185-189. ISSN 0035-1032.
  3. ^ J. Nuss, H. Kalpen, W. Hönle, M. Hartweg, H. G. von Schnering (1997). "Neue Tetrapnictidometallate von Silicium, Germanium, Zinn und Tantal mit der Na6ZnO4-Struktur". Zeitschrift für anorganische und allgemeine Chemie (in German). 623 (1–6): 205–211. doi:10.1002/zaac.19976230134. ISSN 0044-2313. Archived from the original on 2021-12-09. Retrieved 2021-12-10.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  4. ^ Teng Wang, Jianan Chu, Hua Jin, Jiaxin Feng, Lingling Wang, Yekai Song, Chi Zhang, Xuguang Xu, Wei Li, Zhuojun Li, Tao Hu, Da Jiang, Wei Peng, Xiaosong Liu, Gang Mu (2019-06-06). "Single-Crystal Growth and Extremely High H c2 of 12442-Type Fe-Based Superconductor KCa 2 Fe 4 As 4 F 2". The Journal of Physical Chemistry C. 123 (22): 13925–13929. arXiv:1903.04822. doi:10.1021/acs.jpcc.9b04624. ISSN 1932-7447. S2CID 118896215. Archived from the original on 2021-12-09. Retrieved 2021-12-10.{{cite journal}}: CS1 maint: multiple names: authors list (link)