ABSOLUTE UV AND SOFT-X-RAY PHOTOABSORPTION OF ETHYLENE BY HIGH-RESOLUTION DIPOLE (E,E)-SPECTROSCOPY

被引：67

作者：

COOPER, G

OLNEY, TN

BRION, CE

机构：

来源：

CHEMICAL PHYSICS | 1995年 / 194卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0301-0104(94)00431-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Absolute photoabsorption oscillator strengths (cross sections) for the valence shell discrete region of ethylene from 6 to 10.7 eV have been measured using high resolution (similar to 0.05 eV fwhm) dipole (e, e) spectroscopy. A long-range spectrum was also obtained from 6 to 200 eV at low resolution (similar to 1 eV fwhm), from which the absolute oscillator strength scale was obtained via valence-shell TRK sum-rule normalization. The presently determined absolute oscillator strengths were found to be more consistent with the (exact) theoretical value of the total S(0) TRK sum-rule than previously published data. In addition, the electric dipole polarizability of ethylene determined from the total S(-2) sum-rule incorporating the presently reported oscillator strengths is in very good agreement with experimentally measured polarizability values.

引用

页码：175 / 184

页数：10

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