Rf. Feng et al., Absolute oscillator strengths for hydrogen sulphide: I. Photoabsorption inthe valence-shell and the S 2p and 2s inner-shell regions (4-260 eV), CHEM PHYS, 244(1), 1999, pp. 127-142
Absolute photoabsorption oscillator strengths (cross-sections) for the vale
nce-shell discrete and continuum regions of hydrogen sulphide from 4 to 30
eV have been measured using high-resolution (similar to 0.05 eV fwhm) dipol
e (e, e) spectroscopy. A wide-range spectrum, covering both the valence she
ll and the S 2p and 2s inner shells, has also been obtained from 5 to 260 e
V at low resolution (similar to 1 eV fwhm), and this has been used to deter
mine the absolute oscillator strength scale using valence-shell TRK (i.e.,
S(0)) sum-rule normalization. The presently reported high- and low-resoluti
on absolute photoabsorption oscillator strengths are compared with previous
ly published data from direct photoabsorption measurements. In addition, a
dipole sum-rule analysis on the present photoabsorption data has been perfo
rmed. The static dipole polarizability for hydrogen sulphide determined fro
m the S(-2) sum-rule using the presently reported oscillator strengths is c
ompared with previously reported polarizability values. Other dipole sums S
(u) (u = -1, -3 to -6, -8, -10) and logarithmic dipole sums L(u) (u = -1 to
-6) are also determined from the presently reported absolute photoabsorpti
on differential oscillator strengths. (C) 1999 Elsevier Science B.V. All ri
ghts reserved.