Further laboratory measurements of negative reactions of atmospheric interest

Abstract

This article describes measurements of electron attachment and detachment rate constants made in the thermal environment of a flowing-afterglow Langmuir-probe apparatus (FALP) at the Air Force Research Laboratory (AFRL). If the molecular electron affinity is low enough that electron detachment from the parent anion occurs in the temperature range of the apparatus (298–550 K), the attachment/detachment equilibrium constant allows accurate determination of the electron affinity. Electron attachment reactions to a variety of molecules is described, from simple hexafluorides to transition-metal trifluorophosphines and carbonyls.