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Xenonium
Identifiers
CAS Number	37276-91-8 [NIST];
3D model (JSmol)	Interactive image;
	InChI InChI=1S/HXe/h1H/q+1 Key: YPQLIBJXUXECHV-UHFFFAOYSA-N;
	SMILES [XeH+];
Properties
Chemical formula	HXe+
Molar mass	132.300 g·mol−1
Related compounds
Related compounds	Helium hydride; Neonium, Argonium, Kryptonium
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

The xenonium ion, XeH⁺, is an onium compound, consisting of protonated xenon. Although the existence of the xenonium salts has not been proven, the isolated XeH⁺ ion is known.^[2] Salts of the fluoroxenonium ion, XeF⁺, are known to exist, for instance fluoroxenonium pentafluoroplatinate (XeFPtF₅), more commonly known as xenon hexafluoroplatinate.^[3]

References

^ NIST Office of Data and Informatics. "HXe+". webbook.nist.gov.
^ Grandinetti, Felice (October 2011). "Gas-Phase Ion Chemistry of the Noble Gases: Recent Advances and Future Perspectives". European Journal of Mass Spectrometry. 17 (5): 423–463. doi:10.1255/ejms.1151.
^ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.