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ISSN 1998-9539

NMR Study of Paramagnetic Properties and the Kinetics of Hydrolysis of the Dy-tris-tBu-DOTA-ester Complex

Sergey P. Babailov, and Eugeny N. Zapolotsky@

A.V. Nikolaev Institute of Inorganic Chemistry, the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russian Federation

@Corresponding author e-mail:


It was shown that the Dy3+ complex with tri-tert-butyl-1,4,7,10-tetraazacyclodecane-1,4,7,10-tetraacetic acid is subjected to irreversible stepwise hydrolysis with the final formation of the complex [Dy(DOTA)]- and the hydrolysis rate constants were determined. The temperature sensitivity of the paramagnetic chemical shifts of the signals corresponding to the initial complex and two intermediate hydrolysis products was estimated.