Temperature-dependent absorption strengths for transitions from the ground state to the mutually perturbed A1Π (v=1) and d3Δ1 (v=5) states of CO

被引：12

作者：

Wu, CYR ^{[1
]}

Chen, FZ

Judge, DL

Hua, XM

Caldwell, J

机构：

[1] Univ So Calif, Dept Phys, Los Angeles, CA 90089 USA

[2] Univ So Calif, Astron & Space Sci Ctr, Los Angeles, CA 90089 USA

[3] York Univ, Dept Phys & Astron, N York, ON L4K 3C8, Canada

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 01期

关键词：

D O I：

10.1063/1.478102

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：

High resolution photoabsorption cross section data for the CO 4PG (1,0) band have been obtained under several different temperature conditions. It was found that the absorption strength of the d (3)Delta(1)-X (1)Sigma(+) (5,0) band underlying the 4PG (1,0) band varies with temperature. The ratio of the absorption band strength of the d-X (5,0) band to that of the 4PG (1,0) band has been determined for temperatures at 150 K, 295 K, and 370 K. Adopting the integrated oscillator strength of the 4PG (1,0) from the recent literature we have determined band absorption cross sections for the two bands as a function of temperature. The ratios of the band absorption strengths of the A-X (1,0) and d-X (5,0) bands at different temperatures are compared with those calculated from the mixing coefficients determined by analysis of level shifts in high resolution spectra and lifetime measurements. (C) 1999 American Institute of Physics. [S0021-9606(99)03601-6].

引用

页码：267 / 273

页数：7

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