Conformationally Flexible p-Sulfonated Calix[5]arene Binding with Large Bis-Phosphonium Cations

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• 作者：Irene Ling ; Yatimah Alias ; Brian W. Skelton ; Colin L. Raston
• 刊名：Crystal Growth & Design
• 出版年：2012
• 出版时间：March 7, 2012
• 年：2012
• 卷：12
• 期：3
• 页码：1564-1570
• 全文大小：461K
• 年卷期：v.12,no.3(March 7, 2012)
• ISSN：1528-7505

文摘

Water-soluble p-sulfonated calix[5]arene forms a multicomponent complex with aquated Gd(III) ions and bis-phosphonium cations, where the calixarenes are arranged in bilayers with the bis-phosphonium cations embedded between and within the bilayers. The calixarenes are significantly distorted from the common 鈥渃one鈥?conformation and are linked from one bilayer to another through the sulfonate groups via secondary coordination sphere interactions associated with homoleptic aquated metal ions.