Photodetachment microscopy of the P, Q, and R branches of the OH-(v=0) to OH(v=0) detachment threshold -: art. no. 014308

被引：51

作者：

Goldfarb, F ^{[1
]}

Drag, C ^{[1
]}

Chaibi, W ^{[1
]}

Kröger, S ^{[1
]}

Blondel, C ^{[1
]}

Delsart, C ^{[1
]}

机构：

[1] CNRS, Aime Cotton Lab, F-91405 Orsay, France

来源：

JOURNAL OF CHEMICAL PHYSICS | 2005年 / 122卷 / 01期

关键词：

D O I：

10.1063/1.1824904

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：

A photodetachment experiment is performed on the v=0-->v=0 OH- detachment threshold. The weak O and S branches provide a signal strong enough to make amplitude measurements on all five O, P, Q, R, and S branches possible, which are used to fix the formulas for their relative intensities. Photodetachment microscopy is applied to 15 different thresholds of the P, Q, and R branches. The quantitative analysis of the interference patterns obtained does not show any effect of the dipole moment of OH, but yields a new measurement of the rotational parameters of OH-(v=0) and of the electron affinity of the molecule. The new recommended value for the electron affinity of (OH)-O-16-H-1 is 14 740.982(7) cm(-1) or 1.827 648 7(11) eV. (C) 2005 American Institute of Physics.

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页数：10

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