Synthesis, Characterization, and Reactivity of Metalla‐Chalcogenirenium Compounds†. Issue 6 (21st May 2021)

• Record Type: Journal Article
• Authors: Luo, Ming; Cai, Yapeng; Lin, Xinlei; Long, Lipeng; Zhang, Hong; Xia, Haiping
• Is Part Of: Chinese journal of chemistry. Volume 39:Issue 6(2021)
• Page Start: 1558
• Page End: 1564
• Publication Date: 2021-05-21
• Subjects: Metalla‐chalcogenirenium -- Density functional calculations -- Metallacycles -- P‐block cations -- Aromaticity; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/cjoc.202000745
• Languages: English
• ISSNs: 1001-604X

Abstract

Main observation and conclusion: Chalcogenirenium cations, featuring an unsaturated three‐membered organic ring, are limited but known to be synthesizable from alkynes with bulky electron‐donating groups. Metalla‐chalcogenirenium compounds have been synthesized as stable compounds through the reactions of a cyclic metal‐carbyne complex—metallapentalyne with PhSCl, PhSeCl or PhTeCl. As a result of the high strain in the three‐membered metallacycles, the metalla‐chalcogenirenium cations react readily with the base or chloride ions. These reactions furnish a series of unprecedented chalcogenirenium cations with intact M=C bonds. The intrinsic stabilization effect of aromaticity is further elucidated by density functional calculations. Abstract :