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: babajlov@niic.nsc.ru

DOI: 10.6060/mhc200605z
Macroheterocycles 2020 13(3) 281-286

It was shown that 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.

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

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