{"title":"具有三烷基单乙酸基团的锂选择性钙[4]炔:三个烷基分支和 p 位 t-辛基对锂萃取选择性的影响","authors":"Keisuke Ohto, Hirotoshi Sadamatsu, Takuya Hanada, Shintaro Morisada, Hidetaka Kawakita","doi":"10.1007/s10847-024-01233-5","DOIUrl":null,"url":null,"abstract":"<p>Trialkyl-monoacetic acid derivatives of <i>p</i>–t-octylcalix[4]arene and calix[4]arene were prepared to investigate the effect of the alkyl branches attached to the phenoxy oxygen atoms and the <i>p</i>-position on the selective extraction of Li<sup>+</sup> over Na<sup>+</sup>. Alkyl branches on the phenoxy oxygen atoms remarkably affected the Li<sup>+</sup> selectivity, whereas those at the <i>p</i>-position had less effect. The former can contribute to excluding Na<sup>+</sup> extraction while enabling Li<sup>+</sup> extraction. Optimal selection of the alkyl branch improves the Li<sup>+</sup> selectivity of calix[4]arene. However, sterically-hindered <i>p</i>–t-octylcalix[4]arene with three 2-ethylbutyl branches exhibited opposite selectivity.</p>","PeriodicalId":638,"journal":{"name":"Journal of Inclusion Phenomena and Macrocyclic Chemistry","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Li-selective calix[4]arene with trialkyl-monoacetic acid groups: effect of three alkyl branches and t-octyl groups at p-position on selectivity for Li extraction\",\"authors\":\"Keisuke Ohto, Hirotoshi Sadamatsu, Takuya Hanada, Shintaro Morisada, Hidetaka Kawakita\",\"doi\":\"10.1007/s10847-024-01233-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Trialkyl-monoacetic acid derivatives of <i>p</i>–t-octylcalix[4]arene and calix[4]arene were prepared to investigate the effect of the alkyl branches attached to the phenoxy oxygen atoms and the <i>p</i>-position on the selective extraction of Li<sup>+</sup> over Na<sup>+</sup>. Alkyl branches on the phenoxy oxygen atoms remarkably affected the Li<sup>+</sup> selectivity, whereas those at the <i>p</i>-position had less effect. The former can contribute to excluding Na<sup>+</sup> extraction while enabling Li<sup>+</sup> extraction. Optimal selection of the alkyl branch improves the Li<sup>+</sup> selectivity of calix[4]arene. However, sterically-hindered <i>p</i>–t-octylcalix[4]arene with three 2-ethylbutyl branches exhibited opposite selectivity.</p>\",\"PeriodicalId\":638,\"journal\":{\"name\":\"Journal of Inclusion Phenomena and Macrocyclic Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-04-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Inclusion Phenomena and Macrocyclic Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1007/s10847-024-01233-5\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Agricultural and Biological Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Inclusion Phenomena and Macrocyclic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10847-024-01233-5","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 0
摘要
制备了对-t-辛基钙并[4]炔和钙并[4]炔的三烷基单乙酸衍生物,以研究苯氧基氧原子上的烷基分支和 p 位上的烷基分支对 Li+ 对 Na+ 的选择性萃取的影响。苯氧基氧原子上的烷基分支对 Li+ 的选择性有显著影响,而 p 位上的烷基分支影响较小。前者有助于排除 Na+ 的萃取,而有利于 Li+ 的萃取。烷基分支的最佳选择可提高钙[4]炔的 Li+ 选择性。然而,具有三个 2-乙基丁基支的立体受阻对叔辛基钙力[4]炔却表现出相反的选择性。
Li-selective calix[4]arene with trialkyl-monoacetic acid groups: effect of three alkyl branches and t-octyl groups at p-position on selectivity for Li extraction
Trialkyl-monoacetic acid derivatives of p–t-octylcalix[4]arene and calix[4]arene were prepared to investigate the effect of the alkyl branches attached to the phenoxy oxygen atoms and the p-position on the selective extraction of Li+ over Na+. Alkyl branches on the phenoxy oxygen atoms remarkably affected the Li+ selectivity, whereas those at the p-position had less effect. The former can contribute to excluding Na+ extraction while enabling Li+ extraction. Optimal selection of the alkyl branch improves the Li+ selectivity of calix[4]arene. However, sterically-hindered p–t-octylcalix[4]arene with three 2-ethylbutyl branches exhibited opposite selectivity.
期刊介绍:
The Journal of Inclusion Phenomena and Macrocyclic Chemistry is the premier interdisciplinary publication reporting on original research into all aspects of host-guest systems. Examples of specific areas of interest are: the preparation and characterization of new hosts and new host-guest systems, especially those involving macrocyclic ligands; crystallographic, spectroscopic, thermodynamic and theoretical studies; applications in chromatography and inclusion polymerization; enzyme modelling; molecular recognition and catalysis by inclusion compounds; intercalates in biological and non-biological systems, cyclodextrin complexes and their applications in the agriculture, flavoring, food and pharmaceutical industries; synthesis, characterization and applications of zeolites.
The journal publishes primarily reports of original research and preliminary communications, provided the latter represent a significant advance in the understanding of inclusion science. Critical reviews dealing with recent advances in the field are a periodic feature of the journal.