argonium
Sign in to saveAlso known as argonium ion, protonated argon, ArH+, argon hydride cation, hydridoargon(1+)
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.
Wikidata facts
- Mass
- 40.969659572089995
Show 4 more facts
- chemical formula
- ArH⁺
- binding energy
- 2.9
- electric dipole moment
- 2.18
- canonical SMILES
- [ArH+]
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7 sectionsContents
- Properties
- Reactions
- Spectrum
- Natural occurrence
- History
- Use
- References
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.
==Properties== Argonium is isoelectronic with hydrogen chloride. Its dipole moment is 2.18 D for the ground state. The binding energy is 369 kJ mol−1 (3.9 eV). This is smaller than that of trihydrogen cation| and many other protonated species, but more than that of Dihydrogen cation|.