Argonium

Argonium
Names
IUPAC name
Argonium ion
Other names
Hydridoargon(1+)
argon hydride cation[1]
protonated argon[2]
Identifiers
3D model (JSmol)
  • InChI=1S/ArH/h1H/q+1 checkY[NIST]
    Key: TVQSUVFYDVJWLI-UHFFFAOYSA-N checkY[NIST]
  • [ArH+]
Properties
ArH+
Molar mass 40.956 g·mol−1
Conjugate base Argon
Related compounds
Related compounds
 Helium hydride ion, Neonium, Kryptonium, Xenonium
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Argonium (also called the argon hydride cation, the hydridoargon(1+) ion, or protonated argon; chemical formula ArH+) is a cation combining a proton and an argon atom. It can be made in an electric discharge, and was the first noble gas molecular ion to be found in interstellar space.[3]

  1. ^ NIST Computational Chemistry Comparison and Benchmark Database, NIST Standard Reference Database Number 101. Release 19, April 2018, Editor: Russell D. Johnson III. http://cccbdb.nist.gov/
  2. ^ Neufeld, David A.; Wolfire, Mark G. (2016). "The Chemistry of Interstellar Argonium and Other Probes of the Molecular Fraction in Diffuse Clouds". The Astrophysical Journal. 826 (2): 183. arXiv:1607.00375. Bibcode:2016ApJ...826..183N. doi:10.3847/0004-637X/826/2/183. S2CID 118493563.
  3. ^ Quenqua, Douglas (13 December 2013). "Noble Molecules Found in Space". The New York Times. Retrieved 26 September 2016.