Aminopolycarboxylates of rare earths. 14. Equilibrium and 1H NMR studies on the Lanthanide(III)-ethylenebis(oxyethylenedinitrilo)-tetraacetate complexes

H5dotasa (=(αRS)-α-(Carboxymethyl)-1,4,7

H5dotasa (=(αRS)-α-(Carboxymethyl)-1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic Acid), an Asymmetrical Derivative of H4dota (=1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic Acid) Substituted at One Acetate Pendant Arm: 1H-NMR and Potentiometric Studies of the Ligand and Its Lanthanide(III) Complexes

✍ João P. André; Ernö Brücher; Robert Kiraly; Rui A. Carvalho; Helmut Mäcke; Carlo 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 German ⚖ 192 KB 👁 1 views

## Abstract The ligand H~5~dotasa (=(__αRS__)‐__α__‐(carboxymethyl)‐1,4,7,10‐tetraazacyclododecane‐1,4,7,10‐tetraacetic acid) is a H~4~dota‐like macrocyclic ligand with a carboxymethyl CH~2~COOH substituent at the C(__α__) atom of one of the four acetate pendant arms of H~4~dota (=1,4,7,10‐tetraaza