Issue 12, 1998

Ligands derived from C-aryl substituted derivatives of cyclen: formation of kinetically unstable complexes with lanthanide(III) ions

Abstract

The synthesis of C-aryl monosubstituted derivatives of 1,4,7,10-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 processes rather than for applications invivo.

Article information

Article type
Paper

New J. Chem., 1998,22, 1359-1364

Ligands derived from C-aryl substituted derivatives of cyclen: formation of kinetically unstable complexes with lanthanide(III) ions

C. D. Edlin, S. Faulkner, D. Parker, M. P. Wilkinson, M. Woods, J. Lin, E. Lasri, F. Neth and M. Port, New J. Chem., 1998, 22, 1359 DOI: 10.1039/A805231J

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