Crown ether substituted cobalta bis(dicarbollide) ions as selective extraction agents for removal of Cs+ and Sr2+ from nuclear waste
作者:Bohumír Grüner、Jaromír Plešek、Jiří Báča、Jean Francois Dozol、Veronique Lamare、Ivana Císařová、Martin Bělohradský、Josef Čáslavský
DOI:10.1039/b109956f
日期:2002.6.24
series of crown ether derivatives of the cobalta bis(dicarbollide) closo-[(1,2-C2B9H11)2-3,3′-Co]− (1) anion was prepared using two synthetic strategies. The first method employs dioxane ring cleavage of the closo-[8-(C4H8O2)-1,2-C2B9H10}-3,3′-Co-(1′,2′-C2B9H11)]0 zwitterionic species with sodium oxymethyl crowns, producing a series of anions with spacer bonded crown ether moieties varying in crown ether
一系列 冠醚所述cobalta双(dicarbollide)的衍生物 闭合碳[(1,2--C - 2乙9 ħ 11)2 -3,3'- CO] - (1)阴离子制备使用两种合成策略。第一种方法采用二恶烷所述的环切割闭合碳- [8-(C 4 ħ 8 ö 2)-1,2--C 2乙9 ħ 10 } -3,3'--CO-(1',2'-C 2乙9 ħ 11)] 0个两性离子物种,带有羟甲基钠冠,产生一系列带有间隔键的阴离子冠醚 不同的部分 冠醚戒指的大小。该组中的三种化合物;closo -[8-(15-crown-5-CH 2 O)-(CH 2 CH 2 O)2 -1,2-C 2 B 9 H 10 } -3,3'-Co-(1', 2′-C 2 B 9 H 11)] - (2),closo -[8-(18-crown-6-CH 2 O)-(CH 2 CH 2 O)2 -1,2-C 2 B 9 H 10