Dissociation dynamics of anionic and excited neutral fragments of gaseous SiCl4following Cl 2p and Si 2p core-level excitations
نویسندگان
چکیده
منابع مشابه
Dissociation dynamics of positive-ion and negative-ion fragments of gaseous and condensed Si(CH(3))(2)Cl(2) via Si 2p, Cl 2p, and Cl 1s core-level excitations.
The state-selective positive-ion and negative-ion dissociation pathways of gaseous and condensed Si(CH(3))(2)Cl(2) following Cl 2p, Cl 1s, and Si 2p core-level excitations have been characterized. The excitations to a specific antibonding state (15a(1) (*) state) of gaseous Si(CH(3))(2)Cl(2) at the Cl 2p, Cl 1s, and Si 2p edges produce significant enhancement of fragment ions. This ion enhancem...
متن کاملPhotofragmentation of SiF4 upon Si 2p and F 1s core excitation: cation and anion yield spectroscopy.
We have studied the fragmentation dynamics of core-excited SiF4 by means of soft-x-ray photoexcitation and partial positive and negative ion yield measurements around the Si L2,3-shell and F K-shell ionization thresholds. All detectable ionic fragments are reported and we observe significant differences between the various partial ion yields near the Si 2p threshold. The differences are similar...
متن کاملRole of 2p-2h MEC excitations in superscaling
Following recent studies of inclusive electron scattering from nuclei at high energies which focused on two-nucleon emission mediated by meson-exchange currents, in this work the superscaling behavior of such contributions is investigated. Comparisons are made with existing data below the quasielastic peak where at high momentum transfers scaling of the second kind is known to be excellent and ...
متن کاملAccurate ab initio potential energy surface, thermochemistry, and dynamics of the Cl(2P, 2P(3/2) + CH4 → HCl + CH3 and H + CH3Cl reactions.
We report a high-quality, ab initio, full-dimensional global potential energy surface (PES) for the Cl((2)P, (2)P(3/2)) + CH(4) reaction, which describes both the abstraction (HCl + CH(3)) and substitution (H + CH(3)Cl) channels. The analytical PES is a least-squares fit, using a basis of permutationally invariant polynomials, to roughly 16,000 ab initio energy points, obtained by an efficient ...
متن کاملRESONANT 3p AND 3s CORE-LEVEL PHOTOEMISSION AT THE 2p THRESHOLDS OF Ni AND Co METAL
We report on a resonant photoemission study of Ni and Co metal at the LIn soft-X-ray absorption threshold. The valence-band spectra as well as the 3p and 3s emission exhibit an enhancement at resonance. For Ni metal, a quantitative analysis shows that the increase of the 3p and 3s emission signal is mainly due to an incoherent superposition of the photoemission and the Auger channels. In case o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2008
ISSN: 1367-2630
DOI: 10.1088/1367-2630/10/10/103010