TY - JOUR
T1 - C+{radical dot}10 and C+{radical dot}7 carbon cluster ions from overcrowded octachloropentafulvalene and octachloronaphthalene
AU - Lifshitz, Chava
AU - Peres, Tikva
AU - Kababia, Shifra
AU - Agranat, Israel
PY - 1988/1/20
Y1 - 1988/1/20
N2 - Ions C+{radical dot}10 and C+{radical dot}7 were produced by dissociative electron impact ionization from octachloropentafulvalene and octachloronaphthalene and studied by MS/MS techniques: unimolecular MIKES, CAD, and charge stripping. Elimination of C3 is the major fragmentation reaction of both ions in the metastable time frame. Kinetic energy releases indicate negligible activation barriers along the reaction coordinate for dissociation. The present findings are discussed in the light of recent experimental studies of carbon cluster ions by laser vaporization techniques and calculations concerning structures of carbon ion clusters. The possibilities of monocyclic C+{radical dot}10 and/or fused bicyclic octadehydronaphthalene C+{radical dot}10 are raised. The results illustrate a general method for studying C+{radical dot}n species generated by exhaustive halogen elimination from perhalo conjugated hydrocarbons.
AB - Ions C+{radical dot}10 and C+{radical dot}7 were produced by dissociative electron impact ionization from octachloropentafulvalene and octachloronaphthalene and studied by MS/MS techniques: unimolecular MIKES, CAD, and charge stripping. Elimination of C3 is the major fragmentation reaction of both ions in the metastable time frame. Kinetic energy releases indicate negligible activation barriers along the reaction coordinate for dissociation. The present findings are discussed in the light of recent experimental studies of carbon cluster ions by laser vaporization techniques and calculations concerning structures of carbon ion clusters. The possibilities of monocyclic C+{radical dot}10 and/or fused bicyclic octadehydronaphthalene C+{radical dot}10 are raised. The results illustrate a general method for studying C+{radical dot}n species generated by exhaustive halogen elimination from perhalo conjugated hydrocarbons.
UR - http://www.scopus.com/inward/record.url?scp=0001522952&partnerID=8YFLogxK
U2 - 10.1016/0168-1176(88)80014-4
DO - 10.1016/0168-1176(88)80014-4
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AN - SCOPUS:0001522952
SN - 0168-1176
VL - 82
SP - 193
EP - 204
JO - International Journal of Mass Spectrometry and Ion Processes
JF - International Journal of Mass Spectrometry and Ion Processes
IS - 1-2
ER -