A photoionization mass spectrometer study of CFCl3, CF2Cl2, and CF3Cl

Abstract

A photoionization mass spectrometer has been used over the wavelength range 650–1100 Å (19.07–11.27 eV) to determine the appearance potentials, heats of formation, and photoionization efficiencies of the following ions: CFCl+2, CCl+3,CFCl+, and CCl+2 from CFCl3; CF2Cl+2, CFCl+2, CF2Cl+, CFCl+, and CF+2 from CF2Cl2; and CF3Cl+, CF3+, and CF+2 from CF3Cl. The parent ion CFCl+3 of CFCl3 was not observed.