Research output: Contribution to journal › Article › peer-review
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.
Original language | English |
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Pages (from-to) | 193-198 |
Number of pages | 6 |
Journal | Journal of Electron Spectroscopy and Related Phenomena |
Volume | 101-103 |
State | Published - 1 Dec 1999 |
ID: 43209057