Neptunium diarsenide

Neptunium diarsenide  Identifiers

CAS Number

* 39350-10-2 Y

3D model (JSmol)

* Interactive image

InChI

* InChI=1S/As2.Np/c1-2;/q-4;+4

Key: QGMNOYVKXOFBOP-UHFFFAOYSA-N

SMILES

* [As-2][As-2].[Np+4]

Properties

Chemical formula

| NpAs2
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 NpAs2.[1][2] The compound forms crystals.[3]

## Synthesis

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

NpHx+2As →450oC NpAs2+(x/2)H2

## 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. https://ur.booksc.eu/book/2144181/07d0fc. Retrieved 9 August 2021.
2. ↑ (in en) Nuclear Science Abstracts. Oak Ridge Directed Operations, Technical Information Division. April 1973. p. 2593. https://books.google.com/books?id=FqdHAQAAMAAJ&q=Neptunium+diarsenide&pg=PA2593. 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. doi:10.1016/0304-8853(82)90207-4. Bibcode: 1982JMMM...30..265B.
4. ↑ Addison, C. C. (31 October 2007) (in en). Inorganic Chemistry of the Main-Group Elements: Volume 2. Royal Society of Chemistry. p. 533. ISBN 978-1-84755-638-7. https://books.google.com/books?id=vHAoDwAAQBAJ&dq=Neptunium+diarsenide&pg=PA533. Retrieved 9 August 2021.
5. ↑ (in en) Physica B + C. North-Holland Publishing Company. 1985. p. 102. https://books.google.com/books?id=CHzyAAAAMAAJ&q=Neptunium+diarsenide+NpAs2+tetragonal+system. Retrieved 11 January 2022.

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Neptunium compounds

Np(III)|

* NpF3
* NpCl3
* NpBr3
* NpI3

Np(IV)|

* NpF4
* NpCl4
* NpBr4
* NpO2
* Np(C8H8)2

Np(V)|

* NpF5

Np(VI)|

* NpF6

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Arsenic compounds

* AsBr3
* AsCl3
* AsCl5
* AsF3
* AsF5
* AsH3
* AsHgI4
* AsI3
* As2O3
* As2O5
* As2S3
* As2S5
* As2Se3
* As4S4

Template:Arsenides

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