Fragmentation patterns of doubly charged acrylonitrile molecule following carbon core ionization.
Dissociation of acrylonitrile into pairs of cations and neutral fragments following molecular core ionization was investigated using the photoelectron-photoion-photoion coincidence (PEPIPICO) technique. The fragment ion mass spectra were recorded in coincidence with the carbon 1s photoelectrons. Deuterated and (13)C-substituted samples were used for resolving fragment mass ambiguities. Slope analysis of the PEPIPICO patterns was used in determining the fragment separation sequences in case of multiparticle processes. The results show that there are several fragmentation channels producing a wide range of charged coincident fragments. The dynamics of the dominant fragmentation processes is investigated in detail.
Department of Physics and Astronomy, University of Turku, Fin-20014 Turku, Finland. ersita@utu.fi
E
E
Itälä
E
E
Kukk
D T
DT
Ha
S
S
Granroth
A
A
Caló
L
L
Partanen
H
H
Aksela
S
S
Aksela
D000181:Acrylonitrile / Q000134:cerebrospinal fluid / Q000737:chemistry* / Q000378:metabolism; D000595:Amino Acid Sequence; D002244:Carbon / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007477:Ions; D015394:Molecular Structure; D010777:Photochemistry; D012694:Serine / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods
D007477:Ions; D012694:Serine; D002244:Carbon; D000181:Acrylonitrile