Synthesis and characterization of the difluorotris(fluorosulfate) of uranium(V): UF2(SO3F)3

Abstract

A new U(V) compound, UF2(S03F)3, has been synthesized by the reaction of UF6 and S03 in both the gaseous phase and CFC13 solution. This leads to a blue-green solid, the x-ray powder diffraction pattern of which has been recorded. Its oxidation state has been deduced from chemical analysis, the electronic absorption spectrum, and magnetic measurements. The environment around uranium is discussed from Raman and infrared spectra recorded at ambient and liquid nitrogen temperatures.

Uranium(IV) trifluoromethanesulfonate and some ternary uranium(IV) trifluoromethanesulfonates

“…j Uraniurn(1V) (5,6) and uranium(V) fluorosulfates (7,8) have been reported. U02(S03F)2 and UO(S03F)2 are also known (6).…”

Synthesis and characterization of uranium(V) fluoride fluorosulfates and uranium(V) oxyfluorosulfate: UF3(SO3F)2, UF(SO3F)4, and UO(SO3F)3

“…Def and lattice modes 0 Assignments were made by comparison with the data given in ref 15 for the fluorosulfate groups and ref 1 for the U-F vibration. b~d These bands, the intensities of which vary from one spectrum to the other, can be attributed to the presence of traces of uranyl compounds (6), traces of UF3(S03F)2 (c), or traces UF2(S03F)3 (d).…”