NiCl的激光诱导荧光和傅里叶变换光谱：一个低能级（2）Σ⁺态（1768厘米⁻¹）的识别

Laser-Induced Fluorescence and Fourier Transform Spectroscopy of NiCl: Identification of a Low-Lying (2)Sigma(+) State (1768 cm(-1)).

作者信息

Poclet A, Krouti Y, Hirao T, Pinchemel B, Bernath PF

机构信息

Laboratoire de Physique des Lasers, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq Cedex, 59655, France

出版信息

J Mol Spectrosc. 2000 Nov;204(1):125-132. doi: 10.1006/jmsp.2000.8186.

DOI:10.1006/jmsp.2000.8186

PMID:11034850

Abstract

From a comparison with the spectrum of NiF, a low-lying (2)Sigma(+) state is expected to lie in the first 2000 cm(-1) above the ground X(2)Pi(3/2) state of NiCl. The identification of this (2)Sigma(+) (v = 0) state (at 1768 cm(-1)) has been carried out through the analysis of two electronic transitions (2)Pi(3/2)-(2)Sigma(+) (22 720 cm(-1)) and (2)Pi(1/2)-(2)Sigma(+) (23 210 cm(-1)) recorded by high-resolution Fourier transform spectroscopy. Dispersed fluorescence spectroscopy allowed these transitions to be located on an absolute energy-level diagram that includes the previously studied electronic states. Copyright 2000 Academic Press.

摘要

通过与NiF光谱进行比较，预计在NiCl基态X(2)Pi(3/2)上方最初的2000 cm(-1)范围内存在一个低能级的(2)Sigma(+)态。通过对高分辨率傅里叶变换光谱记录的两个电子跃迁(2)Pi(3/2)-(2)Sigma(+)（22720 cm(-1)）和(2)Pi(1/2)-(2)Sigma(+)（23210 cm(-1)）进行分析，确定了这个(2)Sigma(+)（v = 0）态（位于1768 cm(-1)处）。色散荧光光谱使得这些跃迁能够定位在包含先前研究的电子态的绝对能级图上。版权所有2000年，学术出版社。