Ligands derived from C-aryl substituted derivatives of cyclen: formation of kinetically unstable complexes with lanthanide(III) ions
作者:Christopher D. Edlin、Stephen Faulkner、David Parker、Matthew P. Wilkinson、Mark Woods、Jin Lin、Elisabeth Lasri、Françoise Neth、Marc Port
DOI:10.1039/a805231j
日期:——
4,7,10-tetraazacyclododecane (cyclen) by metal templated reductive amination of triethylenetetramine with aryl glyoxals has been developed and shown to be widely applicable. Octadentate ligands derived from these C-substituted macrocycles form relatively labile eight- coordinate complexes, which dissociate when challenged with EDTA in aqueous solution at pH 5.5, suggesting their use in metal-transport
通过三模板四胺与芳基乙二醛的金属模板化还原胺化反应,合成了1,4,7,10-四氮杂环十二烷(环)的C-芳基单取代衍生物,并显示出广泛的应用前景。衍生自这些C取代大环的八齿配体形成相对不稳定的八坐标络合物,当在pH 5.5的水溶液中用EDTA攻击时,它们会解离,表明它们在金属传输过程中的应用而不是在体内的应用。