Resonances in Low-Energy Electron Collisions with Salicylic Acid.

IF 2.7 2区 化学 Q3 CHEMISTRY, PHYSICAL
The Journal of Physical Chemistry A Pub Date : 2025-02-06 Epub Date: 2025-01-28 DOI:10.1021/acs.jpca.4c07822
Valéria Liberti, Pedro A S Randi, Márcio H F Bettega, Alessandra Souza Barbosa
{"title":"Resonances in Low-Energy Electron Collisions with Salicylic Acid.","authors":"Valéria Liberti, Pedro A S Randi, Márcio H F Bettega, Alessandra Souza Barbosa","doi":"10.1021/acs.jpca.4c07822","DOIUrl":null,"url":null,"abstract":"<p><p>In this work, we report elastic integral, differential, and momentum-transfer cross sections for the scattering of low-energy electrons by salicylic acid. The cross sections were calculated with the Schwinger multichannel method implemented with norm-conserving pseudopotential within the static-exchange and static-exchange plus polarization (SEP) approximations for energies up to 15 eV. In the SEP approximation, four π* resonances were found at around 0.023, 1.27, 3.60, and 6.80 eV. While the first three are shape resonances, the latter has a mixed shape and core-excited shape character. We compare our results with available measurements in the literature, and we also discuss the role of the second resonance in the production of [M-H]<sup>-</sup> and [M-H<sub>2</sub>]<sup>-</sup> species through dissociative electron attachment.</p>","PeriodicalId":59,"journal":{"name":"The Journal of Physical Chemistry A","volume":" ","pages":"1361-1367"},"PeriodicalIF":2.7000,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Physical Chemistry A","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.jpca.4c07822","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/28 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

Abstract

In this work, we report elastic integral, differential, and momentum-transfer cross sections for the scattering of low-energy electrons by salicylic acid. The cross sections were calculated with the Schwinger multichannel method implemented with norm-conserving pseudopotential within the static-exchange and static-exchange plus polarization (SEP) approximations for energies up to 15 eV. In the SEP approximation, four π* resonances were found at around 0.023, 1.27, 3.60, and 6.80 eV. While the first three are shape resonances, the latter has a mixed shape and core-excited shape character. We compare our results with available measurements in the literature, and we also discuss the role of the second resonance in the production of [M-H]- and [M-H2]- species through dissociative electron attachment.

求助全文
约1分钟内获得全文 求助全文
来源期刊
The Journal of Physical Chemistry A
The Journal of Physical Chemistry A 化学-物理:原子、分子和化学物理
CiteScore
5.20
自引率
10.30%
发文量
922
审稿时长
1.3 months
期刊介绍: The Journal of Physical Chemistry A is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, and chemical physicists.
×
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