Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Inner-shell excitation and fragmentation of sulfur aggregates. / Teodorescu, C. M.; Gravel, D.; Choi, J.; Pugmire, D.; Dowben, P. A.; Fominykh, N.; Pavlychev, A. A.; Rühl, E.
в: Journal of Electron Spectroscopy and Related Phenomena, Том 101-103, 01.12.1999, стр. 193-198.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Inner-shell excitation and fragmentation of sulfur aggregates
AU - Teodorescu, C. M.
AU - Gravel, D.
AU - Choi, J.
AU - Pugmire, D.
AU - Dowben, P. A.
AU - Fominykh, N.
AU - Pavlychev, A. A.
AU - Rühl, E.
PY - 1999/12/1
Y1 - 1999/12/1
N2 - Variable size sulfur aggregates (S n with 3≤n≤8) were investigated in the S 2p excitation regime (160 eV≤E≤175 eV) using monochromatic synchrotron radiation. Partial ion yields of mass-selected cations are compared with semiempirical extended Hückel calculations, yielding detailed information on the electronic and geometric structure of the aggregates. Inner-shell excitation in the S 2p regime leads to efficient formation of doubly charged species, which undergo rapid fragmentation via charge separation. The fragmentation pathways are investigated by photoelectron-photoion-photoion coincidence (PEPIPICO) spectroscopy. The charge separation mechanisms are interpreted in terms of Coulomb explosion.
AB - Variable size sulfur aggregates (S n with 3≤n≤8) were investigated in the S 2p excitation regime (160 eV≤E≤175 eV) using monochromatic synchrotron radiation. Partial ion yields of mass-selected cations are compared with semiempirical extended Hückel calculations, yielding detailed information on the electronic and geometric structure of the aggregates. Inner-shell excitation in the S 2p regime leads to efficient formation of doubly charged species, which undergo rapid fragmentation via charge separation. The fragmentation pathways are investigated by photoelectron-photoion-photoion coincidence (PEPIPICO) spectroscopy. The charge separation mechanisms are interpreted in terms of Coulomb explosion.
KW - Coincidence spectroscopy
KW - Extended Hückel calculations
KW - Inner-shell excitation
KW - Mass spectrometry
KW - Sulfur
UR - http://www.scopus.com/inward/record.url?scp=0001187220&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0001187220
VL - 101-103
SP - 193
EP - 198
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
ER -
ID: 43209057