TEMPERATURE-DEPENDENCE OF THE NO3 ABSORPTION-SPECTRUM

被引：118

作者：

YOKELSON, RJ

BURKHOLDER, JB

FOX, RW

TALUKDAR, RK

RAVISHANKARA, AR

机构：

[1] UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309

[2] UNIV COLORADO,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1994年 / 98卷 / 50期

关键词：

D O I：

10.1021/j100101a009

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：

The temperature dependence of the NO3 absorption spectrum was measured over the wavelength range 440-720 nm and temperature range 298-200 K using a diode array spectrometer. The NO3 absorption cross section at 662 nm, the peak of the 0-0 transition, was measured using time resolved tunable diode laser absorption following 351 nm laser photolysis of a Cl-2/ClONO2 mixture. The NO3 absorption cross section at 662 nm was (2.23 +/- 0.22) x 10(-17) cm(2) at 298 K and increased 36% in going from 298 to 200 K (2 sigma error limits including estimated systematic errors). These results are quantitatively compared with previous measurements.

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页码：13144 / 13150

页数：7

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