Reaction of anionic and cationic silicon clusters with tungsten hexafluoride studied by fourier transform ion cyclotron resonance mass spectrometry

Abstract

Anionic and cationic silicon clusters react exothermically with WF 6 to give a variety of tungsten and silicon fluorides. All the silicon anionic clusters transfer their charge to WF 6. The electron affinities of Si 2–6 are estimated to be less than the electron affinity of WF 6 (350 kJ mole (3.6 eV)).