{"title":"Spontaneous redistribution upon oxidation of a Bis-Stibinoarylamine","authors":"","doi":"10.1016/j.poly.2024.117145","DOIUrl":null,"url":null,"abstract":"<div><p>Oxidation of a bis-stibinoaryl amine (<strong>2</strong>) with chloranil leads first to formation of a crystallographically observed bis-stiboranoraryl amine (<strong>3a</strong>) which then undergoes isomerization to an ionic tetraarylstibonium antimonate (<strong>3b</strong>). The isomerization proceeds at different rates in different solvents, but a univariate explanation of solvent effects is not evident. The antimonate anion in <strong>3b</strong> can be exchanged for a fluoride, resulting in a neutral fluorostiborane (<strong>4</strong>), and further to a triflate in an ionic tetraarylstibonium triflate (<strong>5</strong>). Compound <strong>5</strong> displays strong binding of fluoride in tetrahydrofuran. Structures of <strong>3a</strong>, <strong>3b</strong>, <strong>4</strong>, and <strong>5</strong> were determined by single-crystal X-ray diffraction.</p></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polyhedron","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0277538724003218","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Oxidation of a bis-stibinoaryl amine (2) with chloranil leads first to formation of a crystallographically observed bis-stiboranoraryl amine (3a) which then undergoes isomerization to an ionic tetraarylstibonium antimonate (3b). The isomerization proceeds at different rates in different solvents, but a univariate explanation of solvent effects is not evident. The antimonate anion in 3b can be exchanged for a fluoride, resulting in a neutral fluorostiborane (4), and further to a triflate in an ionic tetraarylstibonium triflate (5). Compound 5 displays strong binding of fluoride in tetrahydrofuran. Structures of 3a, 3b, 4, and 5 were determined by single-crystal X-ray diffraction.
期刊介绍：
Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry.
Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.
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