Ferrocene鈥揟riazole鈥揚yrene Triads as Multichannel Heteroditopic Recognition Receptors for Anions, Cations and Ion Pairs

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• 作者：Marı ; &#769 ; a del Carmen Gonz谩lez ; Francisco Ot贸n ; Ra煤l A. Orenes ; Arturo Espinosa ; Alberto T谩rraga ; Pedro Molina
• 刊名：Organometallics
• 出版年：2014
• 出版时间：June 9, 2014
• 年：2014
• 卷：33
• 期：11
• 页码：2837-2852
• 全文大小：698K
• 年卷期：v.33,no.11(June 9, 2014)
• ISSN：1520-6041

文摘

A number of functionalized ferrocene鈥搕riazole鈥損yrene triads, available from 1,1鈥?bis(azido)ferrocene by initial upper arm regioselective formation, through a copper-catalyzed click reaction, and subsequent nitrogen-containing bottom arm formation, through the remaining nitrogen functionality, have been designed, prepared, and structurally characterized as potential multichannel heteroditopic receptors for ions. The versatility of the bottom arm formation enables the decoration of the triad core with an additional nitrogen-based binding site, linked to substituents displaying different optical properties. As a consequence, the resulting disubstituted ferrocene derivatives have been shown to be excellent anion, cation, and ion pair multichannel recognition receptors. In order to gain insight into the coordination modes and into the nature of the anion contact ion pair formed, quantum chemical calculations were also carried out.