Boron 1s photoelectron spectrum of 11BF3: vibrational structure and linewidth.
The boron 1s photoelectron spectrum of (11)BF(3) has been measured at a photon energy of 400 eV and a resolution of about 55 meV. The pronounced vibrational structure seen in the spectrum has been analyzed to give the harmonic and anharmonic vibrational frequencies of the symmetric stretching mode, 128.1 and 0.15 meV, as well as the change in equilibrium BF bond length upon ionization, -5.83 pm. A similar change in bond length has been observed for PF(3) and SiF(4), but a much smaller change for CF(4). Theoretical calculations for BF(3) that include the effects of electron correlation give results that are in reasonable accord with the experimental values. The Lorentzian (lifetime) width of the boron 1s core hole in BF(3) is found to be 72 meV, comparable to the value of 77 meV that has been reported for CF(4).
Thomas
T Darrah
TD
Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA.
Püttner
Ralph
R
Fukuzawa
Hironobu
H
Prümper
Georg
G
Ueda
Kiyoshi
K
Kukk
Edwin
E
Sankari
Rami
R
Harries
James
J
Tamenori
Yusuke
Y
Tanaka
Takahiro
T
Hoshino
Masamitsu
M
Tanaka
Hiroshi
H