a
Saurav
Bhattacharya,
ab
Levente
Kiss,
c
Cristian
Silvestru,
c
Nikolai
Kuhnert
a
and
Ulrich
Kortz
*a
Abstract
The first discrete mixed platinum(IV)–gold(III) oxoanion [PtIV2AuIII3O6((CH3)2AsO2)6]− (1) was synthesized by reaction of H2Pt(OH)6 with H[AuCl4] in a simple one-pot procedure in aqueous solution at pH 7 and comprises two equivalent PtIVO6(As(CH3)2)3 units which are linked by three square-planar AuIIIO4 units. Polyanion 1 could be isolated as a potassium or sodium salt in good yield, which were structurally characterized in the solid state by single-crystal XRD and TGA, and in solution by multinuclear (1H, 13C, 195Pt) NMR, indicating that polyanion 1 is stable in solution, which was confirmed by ESI-MS studies. The sodium salt of 1 undergoes a clean single-crystal-to-single-crystal (SCSC) structural transformation upon rehydration and dehydration.
![Graphical abstract: Mixed noble metal–oxo clusters: platinum(iv)–gold(iii) oxoanion [PtIV2AuIII3O6((CH3)2AsO2)6]−](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=D3CC00243H&imageInfo.ImageIdentifier.Year=2023)
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