A new chelate ligand designed for the uranyl ion

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• 作者：Yael Albo ; Magal Saphier ; Eric Maimon ; Israel Zilbermann ; Dan Meyerstein
• 关键词：Spectrophotometric analysis ; Uranyl ; Imidazolidine ligand
• 刊名：Coordination Chemistry Reviews
• 出版年：2009
• 出版时间：August 2009
• 年：2009
• 卷：253
• 期：15-16
• 页码：2049-2055
• 全文大小：779 K

文摘

The ligand L, L = N,N′-di(2-hydroxy-4,6-di-tert-butyl-benzyl)imidazolidine, reacts with UO₂²⁺, in organic and aqueous media, to yield a complex of UO₂²⁺ with the ligand L′, L′ = N,N′-di(2-hydroxy-4,6-di-tert-butyl-benzyl)-N-2-hydroxylethane–ethylenediamine. The opening of the imidazolidinic ring is a base catalyzed process which is induced by the uranyl ions. The complex UO₂²⁺L′ has two reasonably strong absorption bands at 390 and 490 nm. Thus L can be used to determine quantitatively the concentration of UO₂²⁺ in protic and aprotic media.