Na₂PtF₆, its Crystal Structure, Characterization, and Ammonolysis to [Na(NH₃)₃]₂[PtF₆]

Abstract

We report on the single crystal structure of Na2PtF6, which was synthesized from (NH4)2PtCl6 and NaCl in a flow of 10 % F2 in argon. The light yellow compound crystallizes in the Na2SiF6 structure type with the trigonal space group P321 and the lattice parameters a = 9.2981(2), c = 5.1147(1) Å, and V = 382.95(1) Å3 at 123 K with Z = 3. Na2PtF6 reacts with liquid ammonia yielding bis triamminesodium hexafluoridoplatinate(IV) [Na(NH3)3]2[PtF6]. It crystallizes in the monoclinic space group C2/c with a = 14.0508(4), b = 8.4894(1), c = 12.8820(4) Å, β = 120.495(4)°, and V = 1324.05(6) Å3 at 123 K with Z = 4. In contrast to the aqueous system, the solvolysis in NH3 does not lead to the cleavage of the Pt–F bonds, at least not at the temperatures employed in this study.

Syntheses, Structures and Optoelectronic Properties of Spiroconjugated Cyclic Ketones

“…O 2 SbF 6 is also known to crystallize in the same space group type Ia $\bar{3}$ as O 2 PtF 6 10. Na 2 PtF 6 shows one band at 566 cm –1 12. The O 2 + stretching mode is only visible in the Raman spectrum.…”

A Facile Synthesis of Pure O2PtF6

“…[12] The O 2 + stretching mode is only visible in the Raman spectrum. A band is observed at 1838 cm -1 which is consistent with the value reported in the literature (1837 cm -1 ).…”