Abstract
A new synthetic route for the synthesis of WF5 utilizing a mercury photosensitized reduction of tungsten hexafluoride with H2 is described. Crystals of WF5 were studied using single‐crystal X‐ray diffraction, resulting in the first‐reported crystal structure of WF5. Powder X‐ray diffraction studied at room‐temperature showed the compound was phase‐pure. The IR spectrum of WF5 was reinvestigated and interpreted with the use of solid‐state quantum‐chemical calculations using the DFT‐PBE0 density functional method. The compound synthesized herein was free of HF and moisture but may have contained minute amounts of WOF4, that were only observed in the IR spectrum.
Highlights
Studies describing the synthesis and characterization of tungsten pentafluoride (WF5) began to appear in the literature in the 1960’s and 1970’s.[1,2,3,4,5,6] not much attention has since been given to this pentafluoride
The compound synthesized was free of HF and moisture but may have contained minute amounts of WOF4, that were only observed in the IR spectrum
To synthesize WF5, a drop of mercury was added into a perfluoroethylene/perfluoropropylene copolymer (FEP) reaction vessel and WF6 was condensed into the reaction vessel followed by H2 addition at liquid nitrogen temperature
Summary
Studies describing the synthesis and characterization of tungsten pentafluoride (WF5) began to appear in the literature in the 1960’s and 1970’s.[1,2,3,4,5,6] not much attention has since been given to this pentafluoride.
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