Ionization and ionic fragmentation of tetrahydrofuran molecules by electron collisions

Marcin Dampc (1) , Ewelina Szymańska (1, 2) , Brygida Mielewska (1) , Mariusz Zubek (1)

1 Department of Physics of Electronic Phenomena
2 Department of Physics and Astronomy [Milton Keynes]

Electron impact ionization and ionic fragmentation of tetrahydrofuran molecules in the gas phase was studied in the energy range from ionization threshold up to 150 eV using technique of mass spectrometry. The cation mass spectra, ionization and ionic fragmentation efficiencies were measured over this energy range. Well resolved mass peaks were detected in the mass range 10-72 amu and assigned to corresponding ionic molecular fragments. The most abundant cation in the mass spectra is at 42 amu. Appearance energies of selected ionic fragments were also determined. Possible ionic fragmentation processes are discussed.

Mots clés: Physical Sciences

Marcin Dampc, Ewelina Szymańska, Brygida Mielewska, Mariusz Zubek. Ionization and ionic fragmentation of tetrahydrofuran molecules by electron collisions. Journal of Physics B: Atomic, Molecular and Optical Physics, 2011, 44 (5), pp.55206. ⟨10.1088/0953-4075/44/5/055206⟩. ⟨hal-00600130⟩