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Investigation of Molecular Alkali Tetrafluorido Aurates by Matrix‐Isolation Spectroscopy
Author(s) -
Redeker Frenio A.,
Ellwanger Mathias A.,
Beckers Helmut,
Riedel Sebastian
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201904335
Subject(s) - alkali metal , matrix isolation , neon , dimer , molecular spectroscopy , spectroscopy , ion , chemistry , matrix (chemical analysis) , infrared spectroscopy , molecule , materials science , analytical chemistry (journal) , physics , organic chemistry , argon , chromatography , quantum mechanics
Molecular alkali tetrafluorido aurate ion pairs M[AuF 4 ] (M=K, Rb, Cs) are produced by co‐deposition of IR laser‐ablated AuF 3 and MF in solid neon under cryogenic conditions. This method also yields molecular AuF 3 and its dimer Au 2 F 6 . The products are characterized by their Au–F stretching bands and high‐level quantum‐chemical calculations at the CCSD(T)/triple‐ζ level of theory. Structural changes in AuF 4 − associated with the coordination of the anion to different alkali cations are proven spectroscopically and discussed.