A large difference in the exchange rate of the coordinated water molecule is seen in solution for the diastereoisomers M and m of a europium(III) complex with an octadentate, neutral macrocyclic ligand (k(ex)(M) < k(ex)(m)). This finding is of high relevance to the design of more efficient contrast agents for magnetic resonance imaging.
Direct NMR Spectroscopic Observation of a Lanthanide-Coordinated Water Molecule whose exchange Rate Is Dependent on the Conformation of the Complexes
AIME, Silvio;BARGE, Alessandro;
1998-01-01
Abstract
A large difference in the exchange rate of the coordinated water molecule is seen in solution for the diastereoisomers M and m of a europium(III) complex with an octadentate, neutral macrocyclic ligand (k(ex)(M) < k(ex)(m)). This finding is of high relevance to the design of more efficient contrast agents for magnetic resonance imaging.File in questo prodotto:
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