Neptunium diarsenide

Neptunium diarsenide

Identifiers
CAS Number	39350-10-2^Y
Properties
Chemical formula	NpAs 2
Molar mass	386.84
Appearance	Crystals
Related compounds
Related compounds	Neptunium arsenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Neptunium diarsenide is a binary inorganic compound of neptunium and arsenic with the chemical formula NpAs
₂.[1][2] The compound forms crystals.[3]

Synthesis

Heating stoichiometric amounts of neptunium hydride and arsenic:[4]

${\displaystyle {\mathsf {NpH_{x}+2As\ {\xrightarrow {450^{o}C}}\ NpAs_{2}+(x/2)H_{2}}}}$

Physical properties

Neptunium diarsenide forms crystals of the tetragonal system,[5] space group P4/nmm, cell parameters a = 0.3958 nm, c = 0.8098 nm.

References

1. Charvillat, J. P.; Damien, D. (1973). "Neptunium diarsenide and monoarsenide | J.P. Charvillat; D. Damien | download". Inorganic and Nuclear Chemistry Letters. 9: 337. doi:10.1016/0020-1650(73)80241-7. Retrieved 9 August 2021.
2. Nuclear Science Abstracts. Oak Ridge Directed Operations, Technical Information Division. April 1973. p. 2593. Retrieved 9 August 2021.
3. Blaise, A.; Fournier, J.; Damien, D.; Wojakowski, A.; Charvillat, J. P. (1982). "Magnetic properties of neptunium diarsenide". Journal of Magnetism and Magnetic Materials. 30 (2): 265–268. Bibcode:1982JMMM...30..265B. doi:10.1016/0304-8853(82)90207-4. S2CID 120595687.
4. Addison, C. C. (31 October 2007). Inorganic Chemistry of the Main-Group Elements: Volume 2. Royal Society of Chemistry. p. 533. ISBN 978-1-84755-638-7. Retrieved 9 August 2021.
5. Physica B + C. North-Holland Publishing Company. 1985. p. 102. Retrieved 11 January 2022.