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La(III), Ce(III), Gd(III), and Eu(III) Complexation with Tris(hydroxymethyl)aminomethane in Aqueous Solution

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dc.contributor.author Gamov G.A.
dc.contributor.author Zavalishin M.N.
dc.contributor.author Pimenov O.A.
dc.contributor.author Klochkov V.V.
dc.contributor.author Khodov I.A.
dc.date.accessioned 2021-02-24T20:32:28Z
dc.date.available 2021-02-24T20:32:28Z
dc.date.issued 2020
dc.identifier.issn 0020-1669
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/160786
dc.description.abstract © Lanthanides such as cerium(III), europium(III), and gadolinium(III) are widely used for designing fluorescent probes or magnetic resonance imaging contrasting agents for biological systems. The synthesis and study of lanthanide complexes in buffer solutions imitating biological fluids are often complicated because of a lack of data on the lanthanide interactions with buffer solution components. Therefore, Ln(III) [where Ln(III) = La(III), Ce(III), Gd(III), Eu(III)] complexation with a widely used buffer agent, tris(hydroxymethyl)aminomethane (Tris), in aqueous solution is studied using potentiometry, spectrofluorimetry, and 139La NMR spectroscopy. The stoichiometric composition of complexes is determined using mass spectrometry. The thermodynamic stability constants of Ln(III)-Tris complexes are calculated from potentiometric and spectral data; the difficulties in the study of these systems, reliability, and accuracy of the obtained constants are discussed. The possible structures of free Tris and its complexes with lanthanides(III) are optimized on the density functional theory/PBE0 level; the peculiarities of metal-ligand bonds were studied by Quantum Theory Atoms in Molecules analysis.
dc.relation.ispartofseries Inorganic Chemistry
dc.title La(III), Ce(III), Gd(III), and Eu(III) Complexation with Tris(hydroxymethyl)aminomethane in Aqueous Solution
dc.type Article
dc.relation.ispartofseries-issue 23
dc.relation.ispartofseries-volume 59
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 17783
dc.source.id SCOPUS00201669-2020-59-23-SID85097580952


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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