Polysubstituted guanidine-based receptors for the selective extraction of pertechnetate anions from high-level waste

Dalton Transactions 2026

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Authors: Uliana M. Leksina, Vladimir Abramov, Petr Igorevich Matveev, Pavel Sergeevich Lemport, Alexander V. Gopin, Egor Glushkov, Konstantin Alexandrovich Lyssenko, Alexander L. Trigub, Vladimir Gennadievich Petrov, Yuri Aleksandrovich Ustynyuk, Valentine G. Nenajdenko
DOI: 10.1039/d6dt00057f
Cited by: 0
References: 64

Abstract

back-extraction experiments, revealing the influence of nitric acid concentration, temperature, and alkaline stripping agents. The composition of the extracted species was confirmed by single-crystal X-ray diffraction (SC-XRD) and X-ray absorption spectroscopy (XAS), supporting the formation of discrete ion pairs between the guanidinium cation and pertechnetate anion. These results highlight the potential of guanidine-based receptors for targeted separation of Tc(VII) from complex nuclear waste matrices.

Fields of Study & Subjects

Radioactive element chemistry and processing Chemical Synthesis and Characterization Supramolecular Chemistry and Complexes

Publication details

Journal / source
Dalton Transactions
Volume
55
Issue
11
Pages
4457–4471
Publication date
1 January 2026
Language
EN