Andrés R Urdaneta M, Marcelo Puiatti, Gustavo A Pino, Liliana B Jimenez
{"title":"Influence of Sulfur Oxidation States on the Photophysical Properties of Naphthalimide-Based Donor-Acceptor Systems.","authors":"Andrés R Urdaneta M, Marcelo Puiatti, Gustavo A Pino, Liliana B Jimenez","doi":"10.1021/acs.jpca.5c06126","DOIUrl":null,"url":null,"abstract":"<p><p>This study explores the correlation between the photophysical properties and the oxidation state of the sulfur bridge in NI-SO<sub><i>n</i></sub>-PhOMe (<i>n</i> = 0, 1, 2), which connects naphthalimide and <i>p</i>-methoxyphenyl units. The investigations were conducted in solution and in the solid state, with comparisons made to NI-PhOMe, where the two moieties are directly linked via a carbon-carbon bond. In the sulfur-bridged derivatives, aggregation-induced emission (AIE) was observed, the characteristics of which are influenced by intermolecular interactions and the nature of the medium in which insoluble aggregates form. In contrast, NI-PhOMe exhibited conventional solvatochromism typical of donor-acceptor <b>(</b>D-A) push-pull systems. A detailed analysis is presented on the influence of the oxidation state of the sulfur atom on key properties, including the D-A character induced by naphthalimide substitution, as well as the charge transfer (CT) contribution that governs its photophysical behavior.</p>","PeriodicalId":59,"journal":{"name":"The Journal of Physical Chemistry A","volume":" ","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-10-15","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.5c06126","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This study explores the correlation between the photophysical properties and the oxidation state of the sulfur bridge in NI-SOn-PhOMe (n = 0, 1, 2), which connects naphthalimide and p-methoxyphenyl units. The investigations were conducted in solution and in the solid state, with comparisons made to NI-PhOMe, where the two moieties are directly linked via a carbon-carbon bond. In the sulfur-bridged derivatives, aggregation-induced emission (AIE) was observed, the characteristics of which are influenced by intermolecular interactions and the nature of the medium in which insoluble aggregates form. In contrast, NI-PhOMe exhibited conventional solvatochromism typical of donor-acceptor (D-A) push-pull systems. A detailed analysis is presented on the influence of the oxidation state of the sulfur atom on key properties, including the D-A character induced by naphthalimide substitution, as well as the charge transfer (CT) contribution that governs its photophysical behavior.
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.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
