Lithium arsenide

Last updated
Lithium arsenide
Names
Other names
Litium monoarsenide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.761 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • Li3As:234-950-4
PubChem CID
  • InChI=1S/As.3Li
    Key: NVMVLBOIYVUMOZ-UHFFFAOYSA-N
  • LiAs:InChI=1S/As.Li
    Key: FKQOMXQAEKRXDM-UHFFFAOYSA-N
  • Li3As7:InChI=1S/As7.3Li/c1-4-2-6-5(1)7(6)3-4;;;/q-3;3*+1
    Key: NEEYWAPSSYXKNR-UHFFFAOYSA-N
  • Li3As:[Li][As]([Li])[Li]
  • LiAs:[Li][As]
  • Li3As7:[Li+].[Li+].[Li+].[As]12[As-][As]3[As-][As]1[As]2[As-]3
Properties
AsLi3
Molar mass 95.74 g·mol−1
Appearancered-brown
Density 3.71 g/cm3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Lithium arsenide describes inorganic compounds with the chemical formula LixAs where x can range from about 0.5 to 3. A common derivative is Li3As, which is prepared by the reduction of arsenic with a solution of lithium in ammonia. [1] It can also be produced by heating the elements. [2]

3 Li + As → Li3As

Other lithium arsenides

The arsenic-rich arsenides are often classified as zintl phases.

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Arsenide iodides or iodide arsenides are compounds containing anions composed of iodide (I) and arsenide (As3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the arsenide chlorides, arsenide bromides, phosphide iodides, and antimonide iodides.

References

  1. E. Donges (1963). "Phosphides, Arsenides, Antimonides and Bismuthides of Alkali Metals from the Elements". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 2. NY, NY: Academic Press. p. 985.
  2. Wegner, Florian; Kamm, Franziska; Pielnhofer, Florian; Pfitzner, Arno (2022). "Li3As and Li3P revisited: DFT modelling on phase stability and ion conductivity". Zeitschrift für Anorganische und Allgemeine Chemie . 648 (11). doi:10.1002/zaac.202100358.
  3. 1 2 Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 211. Retrieved 13 January 2022.
  4. 1 2 Hönle, W.; Buresch, J.; Peters, K.; Chang, J. H.; Schnering, H. G. von (2002). "Crystal Structure of the Low-Temperature Modification of Trilithium Heptaarsenide, LT-Li3As7". Zeitschrift für Kristallographie - New Crystal Structures . 217: 485–486. doi: 10.1524/ncrs.2002.217.jg.485 .
  5. None Available (2014). "Materials Data on Li3As7 by Materials Project". LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). doi:10.17188/1283621. OSTI   1283621.
  6. Cromer, D. T. (1 January 1959). "The crystal structure of LiAs". Acta Crystallographica . 12 (1): 36–41. Bibcode:1959AcCry..12...36C. doi: 10.1107/S0365110X59000111 . Retrieved 13 January 2022.