Double-Concave Binding of Bicorannulenyl Dianion: Cesium vs Lithium Salts

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• 作者：Natalie J. Sumner ; Sarah N. Spisak ; Alexander S. Filatov ; Andrey Yu. Rogachev ; Alexander V. Zabula ; Marina A. Petrukhina
• 刊名：Organometallics
• 出版年：2014
• 出版时间：June 9, 2014
• 年：2014
• 卷：33
• 期：11
• 页码：2874-2878
• 全文大小：253K
• 年卷期：v.33,no.11(June 9, 2014)
• ISSN：1520-6041

文摘

The first X-ray structural characterization of bicorannulenyl dianion has been accomplished for two alkali metal salts, [Li⁺(THF)₄]₂[C₄₀H₁₈^{2鈥?/sup>] (1) and [Cs+(18-crown-6)]₂[C₄₀H₁₈2鈥?/sup>] (2). This crystallographic study revealed the biaryl stereochemistry, geometry transformation upon acquiring two electrons, and different binding preferences of Li+ vs Cs+ ions in the solid-state products.}