{"title":"Isolation of Silylene-Ligated Plumbyliumylidene and Diplumbyne","authors":"Kainan Yu, Fanshu Cao, Xi Chen and Zhenbo Mo*, ","doi":"10.1021/acs.organomet.5c0002810.1021/acs.organomet.5c00028","DOIUrl":null,"url":null,"abstract":"<p >In this study, we present the synthesis and characterization of bis(silylene)-ligated plumbyliumylidene and silylene-ligated diplumbyne. Plumbyliumylidene <b>2</b> was obtained through ion–exchange reaction of the bis(silylene)amido lead(II) bromide complex <b>1</b> with one equivalent of Na[BAr<sup>F</sup><sub>4</sub>] (Ar<sup>F</sup> = 3,5-(CF<sub>3</sub>)<sub>2</sub>-C<sub>6</sub>H<sub>3</sub>). Density functional theory calculations confirmed the presence of a lone pair on the lead atom in <b>2</b>. The reduction of compound <b>2</b> yielded silylene-ligated diplumbyne <b>3</b>, which possesses a Pb–Pb single bond and one lone pair on each lead atom. Remarkably, compound <b>3</b> underwent single-electron oxidation to regenerate plumbyliumylidene <b>2</b>, demonstrating a rare redox cycle between the Pb(I) and Pb(II) states. This study enhances the understanding of the electronic structures and redox behavior of low-valent lead compounds.</p>","PeriodicalId":56,"journal":{"name":"Organometallics","volume":"44 7","pages":"792–797 792–797"},"PeriodicalIF":2.5000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organometallics","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.organomet.5c00028","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
In this study, we present the synthesis and characterization of bis(silylene)-ligated plumbyliumylidene and silylene-ligated diplumbyne. Plumbyliumylidene 2 was obtained through ion–exchange reaction of the bis(silylene)amido lead(II) bromide complex 1 with one equivalent of Na[BArF4] (ArF = 3,5-(CF3)2-C6H3). Density functional theory calculations confirmed the presence of a lone pair on the lead atom in 2. The reduction of compound 2 yielded silylene-ligated diplumbyne 3, which possesses a Pb–Pb single bond and one lone pair on each lead atom. Remarkably, compound 3 underwent single-electron oxidation to regenerate plumbyliumylidene 2, demonstrating a rare redox cycle between the Pb(I) and Pb(II) states. This study enhances the understanding of the electronic structures and redox behavior of low-valent lead compounds.
期刊介绍：
Organometallics is the flagship journal of organometallic chemistry and records progress in one of the most active fields of science, bridging organic and inorganic chemistry. The journal publishes Articles, Communications, Reviews, and Tutorials (instructional overviews) that depict research on the synthesis, structure, bonding, chemical reactivity, and reaction mechanisms for a variety of applications, including catalyst design and catalytic processes; main-group, transition-metal, and lanthanide and actinide metal chemistry; synthetic aspects of polymer science and materials science; and bioorganometallic chemistry.
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