Preparation and solid-state and solution studies of three compounds of the tetraiodine dication I42+: I42+(AsF6-)2, I42+(SbF6-)2, and I42+(Sb3F14-)(SbF6-)

The Cl4+ Ion

“…This agrees with the finding that K IrF 6 À and Cs IrF 6 À display temperature-independent paramagnetism. [19,20] This also has a rectangular structure with short (258.6(3) pm) and long bonds (324.7(3) pm). [13] A solid-state EPR spectrum of a product from Cl 2 and SbF 5 at 4.2 K is also assigned to the Cl 4 ion, but has fine structure.…”

Das Cl4+-Ion

“…Im Einklang damit weisen K IrF 6 À und Cs IrF 6 À einen temperaturunabhängigen Paramagnetismus auf. [19,20] Auch dieses hat eine rechteckige Struktur mit kurzen (258.6(3) pm) und langen Bindungen (324.7(3) pm). [13] Ein Festkörper-ESR-Spektrum bei 4.2 K eines Produktes von Cl 2 und SbF 5 wurde ebenfalls dem Cl 4 -Ion zugeschrieben, zeigt aber eine Feinstruktur.…”

A laboratory-scale synthesis of high-purity AsF5 by direct fluorination of AsF3

“…There have since been several reports of laboratory-scale syntheses for AsF 5 that include the fluorination of arsenic metal [10], As 2 O 3 [11] and AsF 3 [12] with F 2 in flow systems and by the static reaction of arsenic metal with F 2 at À196 8C [13] in a nickel vessel. Normally, in the aforementioned procedure [13], F 2 gas is slowly admitted to the nickel/Monel reaction vessel at À196 8C whereupon the As metal ignites and burns to produce AsF 3 /AsF 5 . Normally, in the aforementioned procedure [13], F 2 gas is slowly admitted to the nickel/Monel reaction vessel at À196 8C whereupon the As metal ignites and burns to produce AsF 3 /AsF 5 .…”