REINVESTIGATION OF THE CORDES BAND SYSTEM OF I2 USING A VACUUM ULTRAVIOLET-LASER

被引：18

作者：

HOY, AR ^{[1
]}

LIPSON, RH ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO, DEPT CHEM, LONDON N6A 5B7, ONTARIO, CANADA

来源：

CHEMICAL PHYSICS | 1990年 / 140卷 / 01期

关键词：

D O I：

10.1016/0301-0104(90)89059-Y

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：

Vacuum ultraviolet (VUV) fluorescence excitation spectra of jet-cooled I2 between 195 and 168 nm were recorded using a tunable VUV "laser" generated by four-wave difference mixing in Xe gas and Hg vapor. The strongest absorption in the VUV is between the ground state and the first tier ion-pair state D0u+ (Cordes band system). Band edge wavenumbers measured in this work confirm the vibrational numbering proposed by Tellinghuisen for the VUV spectrum. D state levels between ν′ = 140 and 290 were excited and molecular constants valid between ν′ = 0 and 290 were derived. Perturbed D levels having ν′≥309 were also observed. Their band intensities appear to be related to homogeneous interactions with the e6 Rydberg state. © 1990.

引用

页码：187 / 193

页数：7

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