The C1Πu state of potassium dimer revisited: An extensive study by polarisation labelling spectroscopy method

IF 1.4 4区 物理与天体物理 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
Wlodzimierz Jastrzebski , Jacek Szczepkowski , Pawel Kowalczyk
{"title":"The C1Πu state of potassium dimer revisited: An extensive study by polarisation labelling spectroscopy method","authors":"Wlodzimierz Jastrzebski ,&nbsp;Jacek Szczepkowski ,&nbsp;Pawel Kowalczyk","doi":"10.1016/j.jms.2024.111905","DOIUrl":null,"url":null,"abstract":"<div><p>The polarisation labelling spectroscopy technique was applied to study the C<span><math><mrow><msup><mrow></mrow><mrow><mn>1</mn></mrow></msup><msub><mrow><mi>Π</mi></mrow><mrow><mi>u</mi></mrow></msub></mrow></math></span> <span><math><mo>←</mo></math></span> X<span><math><mrow><msup><mrow></mrow><mrow><mn>1</mn></mrow></msup><msubsup><mrow><mi>Σ</mi></mrow><mrow><mi>g</mi></mrow><mrow><mo>+</mo></mrow></msubsup></mrow></math></span> band system in potassium dimer. About 1100 new rotationally resolved molecular lines were measured in the 22100–24100 cm<sup>−1</sup> spectral range. Perturbations of the lowest vibrational levels of the C state were localised and their origin discussed. A set of Dunham coefficients was deduced to fit the unperturbed levels of the C<span><math><mrow><msup><mrow></mrow><mrow><mn>1</mn></mrow></msup><msub><mrow><mi>Π</mi></mrow><mrow><mi>u</mi></mrow></msub></mrow></math></span> state with <span><math><mrow><mn>0</mn><mo>≤</mo><mi>v</mi><mo>≤</mo><mn>38</mn></mrow></math></span> and <span><math><mrow><mn>18</mn><mo>≤</mo><mi>J</mi><mo>≤</mo><mn>101</mn></mrow></math></span> and the potential energy curve of the state was constructed.</p></div>","PeriodicalId":16367,"journal":{"name":"Journal of Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Molecular Spectroscopy","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022285224000328","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, ATOMIC, MOLECULAR & CHEMICAL","Score":null,"Total":0}
引用次数: 0

Abstract

The polarisation labelling spectroscopy technique was applied to study the C1Πu X1Σg+ band system in potassium dimer. About 1100 new rotationally resolved molecular lines were measured in the 22100–24100 cm−1 spectral range. Perturbations of the lowest vibrational levels of the C state were localised and their origin discussed. A set of Dunham coefficients was deduced to fit the unperturbed levels of the C1Πu state with 0v38 and 18J101 and the potential energy curve of the state was constructed.

Abstract Image

二聚酸钾的 C1Πu 状态再研究:极化标记光谱法的广泛研究
应用偏振标记光谱技术研究了二聚酸钾中的 C1Πu ← X1Σg+ 波段系统。在 22100-24100 cm-1 光谱范围内测量到了约 1100 条新的旋转分辨分子线。对 C 态最低振动级的扰动进行了定位并讨论了其起源。推导出了一组邓纳姆系数,用于拟合 C1Πu 态 0≤v≤38 和 18≤J≤101 的未扰动水平,并构建了该态的势能曲线。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
2.70
自引率
21.40%
发文量
94
审稿时长
29 days
期刊介绍: The Journal of Molecular Spectroscopy presents experimental and theoretical articles on all subjects relevant to molecular spectroscopy and its modern applications. An international medium for the publication of some of the most significant research in the field, the Journal of Molecular Spectroscopy is an invaluable resource for astrophysicists, chemists, physicists, engineers, and others involved in molecular spectroscopy research and practice.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信