Anionic Reactions Degrading SF Using Metals: Insights From the Gas Phase.

Alkali metals have been used to degrade SF in liquid ammonia. The products include metal fluorides. In this study, we reacted K and Ag with SF in a triple quadrupole mass spectrometer. The atomic metal anions were formed by in-source collision-induced dissociation (CID) of their respective oxalate salts as previously described by our group. The only two reaction products observed were SF and SF . At low collision energy, the latter was deduced to be formed via an abstraction by the metal of F from SF formed by electron transfer in the encounter complex between the metal anion and neutral SF. As the collision energy was increased, there was evidence of a CID contribution to SF directly from SF .