Zur Kristallstruktur von OMF (M = Sb, Ru, Pt, Au)

Abstract

Erneut dargestellt, aber erstmals anhand von Einkristallen röntgenographisch untersucht wurden die Fluoride O 2+MF 6− (M = Sb, Ru, Pt, Au). Farbloses O 2+ und die rubinroten Verbindungen O 2+RuF 6− und O 2+PtF 6− kristallisieren isotyp in der Raumgruppe Ia3‐Th7 (Nr. 206) mit a = 1016(1) pm (Sb), a = 1002,6(9) pm (Ru) und a = 1003,6(9) pm (Pt), Z = 8. Gelbes O 2+AuF 6− kristallisiert trigonal‐rhomboedrisch in der Raumgruppe R3‐D326 (Nr. 148) mit a = 775,9(3) pm, c = 711,7(4) pm, Z = 3.

Syntheses and characterization of ANi(AsF6)3 (A=H3O+, O2+, NO+, NH4+, K+, Rb+, and Cs+) compounds

“…Because [12] and for O 2 MF 6 (M = Sb, Ru, Pt) [13]. Rather unusual disordering of NO + moiety has been found in the structure of NONi(AsF 6 ) 3 .…”

The chemistry of gold-fluoro compounds: A continuing challenge for gold chemists

“…The crystal structure of O2[AuF6] (11) has been determined and the Au-F bond lengths were measured to be 1.875(9), 1.895(9) and 1.889(10) Å for the equatorial and axial fluorides, respectively (49,61,62). The X-ray crystal structure of [KrF][AuF6] (12) has also been determined (62).…”

A Facile Synthesis of Pure O2PtF6

“…[7,8] A structure determination of the cubic phase of O 2 PtF 6 had only been possible on powder X-ray and neutron diffraction data, before Müller and co-workers obtained single crystals in a high pressure synthesis requiring a special autoclave technique for the handling of fluorine under 300 bar of pressure at temperatures of 400°C. [3,9,10] The structure of the low temperature rhombohedral phase, observed by Bartlett, has not been elucidated yet. [3] In this report a new and facile method for the synthesis of cubic O 2 PtF 6 in form of large crystals by direct Klemm-type fluorination of commercially available platinum(IV) oxide hydrate in a stream of diluted fluorine (10 % v/v) of atmospheric pressure at a temperature of 275°C is presented.…”

“…In our IR-ATR measurement, only the Pt-F modes of the PtF 6 -anion can be observed in form of a broad band around 614 cm -1 as would be expected considering its regular octahedral symmetry. [10] The diamond anvil of the ATR-cell showed no signs of an etched surface after the measurement. The validity of this result is supported by the findings of Young and co-workers who solely observed the MF 6 -absorption in O 2 SbF 6 and O 2 AsF 6 with 669 and 705 cm -1 , respectively.…”

“…Figure 3 shows a powder X-ray diffraction diagram of O 2 PtF 6 with profile fitting in excellent compliance with published data for the cubic phase in space group Ia3 (no. 206) [3,10] (cell parameter a = 10.0286(3) Å with V = www.zaac.wiley-vch.de ARTICLE 1008.60(3) Å 3 , profile R factor = 2.52 %, profile wR factor = 3.22 %, GOF = 0.99).…”