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Peer-reviewedCC BY 4.0Inorganic Chemistry

Alkali-Metal Complexes of XeF2: Synthesis and Structural Characterization of [Li(XeF2)3PtF6], [Na(XeF2)PtF6], and [K(XeF2)2PtF6]

  • Klemen Motaln1,2
  • Dominik Kurzydłowski3
  • Matic Lozinšek1,2
  1. 1Extreme Conditions Chemistry Laboratory, Jožef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia
  2. 2Jožef Stefan International Postgraduate School, Jamova Cesta 39, 1000 Ljubljana, Slovenia
  3. 3Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszyński University, ul. Wóycickiego 1/3, 01-938 Warsaw, Poland
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Abstract

Reactions of alkali-metal hexafluoridoplatinates­(V), MPtF6 (M = Li, Na, K, Rb), with xenon difluoride in anhydrous hydrogen fluoride were investigated. These reactions afforded the XeF2 coordination compounds [Li­(XeF2)3PtF6], [Na­(XeF2)­PtF6], and [K­(XeF2)2PtF6], whereas no Rb+ complex was isolated. The products were characterized by low-temperature single-crystal X-ray diffraction and Raman spectroscopy, complemented by periodic density functional theory calculations. The alkali-metal coordination number increases progressively from six for Li+ to seven for Na+ and eight for K+. This series expands the currently limited set of XeF2 complexes with monovalent cations and provides the first example of XeF2 coordination to K+ as well as the first monovalent cation with a homoleptic XeF2 coordination sphere, [Li­(XeF2)6]+, observed in [Li­(XeF2)3PtF6]. In addition, single-crystal structures and Raman spectra of the parent salts LiPtF6, NaPtF6, KPtF6, and RbPtF6 are reported.

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Cite

BibTeXRIS
BibTeX
@article{motaln2026alkalimetal,
  title = {{Alkali-Metal Complexes of XeF2: Synthesis and Structural Characterization of [Li(XeF2)3PtF6], [Na(XeF2)PtF6], and [K(XeF2)2PtF6]}},
  author = {Klemen Motaln and Dominik Kurzydłowski and Matic Lozinšek},
  journal = {Inorganic Chemistry},
  year = {2026},
  month = oct,
  doi = {10.1021/acs.inorgchem.6c04065},
  url = {https://doi.org/10.1021/acs.inorgchem.6c04065},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Alkali-Metal Complexes of XeF2: Synthesis and Structural Characterization of [Li(XeF2)3PtF6], [Na(XeF2)PtF6], and [K(XeF2)2PtF6]
AU  - Klemen Motaln
AU  - Dominik Kurzydłowski
AU  - Matic Lozinšek
PY  - 2026
DA  - 2026/10/11
JO  - Inorganic Chemistry
DO  - 10.1021/acs.inorgchem.6c04065
UR  - https://doi.org/10.1021/acs.inorgchem.6c04065
AB  - Reactions of alkali-metal hexafluoridoplatinates­(V), MPtF6 (M = Li, Na, K, Rb), with xenon difluoride in anhydrous hydrogen fluoride were investigated. These reactions afforded the XeF2 coordination compounds [Li­(XeF2)3PtF6], [Na­(XeF2)­PtF6], and [K­(XeF2)2PtF6], whereas no Rb+ complex was isolated. The products were characterized by low-temperature single-crystal X-ray diffraction and Raman spectroscopy, complemented by periodic density functional theory calculations. The alkali-metal coordination number increases progressively from six for Li+ to seven for Na+ and eight for K+. This series expands the currently limited set of XeF2 complexes with monovalent cations and provides the first example of XeF2 coordination to K+ as well as the first monovalent cation with a homoleptic XeF2 coordination sphere, [Li­(XeF2)6]+, observed in [Li­(XeF2)3PtF6]. In addition, single-crystal structures and Raman spectra of the parent salts LiPtF6, NaPtF6, KPtF6, and RbPtF6 are reported.
SN  - 0020-1669
SN  - 1520-510X
ER  -