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Dr. Zsolt Baranyai, Zoltán Pálinkás, Dr. Fulvio Uggeri, Dr. Alessandro Maiocchi, Prof. Silvio Aime and Prof. Ernő Brücher Dissociation Kinetics of Open-Chain and Macrocyclic Gadolinium(III)-Aminopolycarboxylate Complexes Related to Magnetic Resonance Imaging: Catalytic Effect of Endogenous Ligands Chemistry - A European Journal 18

Version of Record online: 8 NOV 2012 | DOI: 10.1002/chem.201202930

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Transmetalation reactions of Gd(DTPA)2− and Gd(DTPA-BMA) with Cu2+ occur through the dissociation of complexes catalyzed by endogenous citrate, phosphate, and carbonate ions. The dissociation of Gd(DTPA-BMA) is catalyzed mainly by CO32− ions. The reactions of Gd(DOTA) and Gd(HP-DO3A) with Cu2+ take place through the proton-assisted dissociation of complexes and the endogenous ligands do not affect the dissociation rates (see figure).

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