| Bibliographic description in the original language |
Ivanova V.Yu. / CITRATE AND XYLO-TRIHYDROXYGLUTARATE
COMPLEXES OF GADOLINIUM(III) / V.Yu. Ivanova , S.G. Bezryadin , V.V. Chevela , T.A. Kuryakova / KhKhII MENDELEEV CONGRESS
ON GENERAL AND APPLIED CHEMISTRY. - Federal Territory “Sirius”, Russia, 2024. - T. 6. - C. 18. |
| Field DC |
Value |
Language |
| dc.contributor.author |
Ivanova Valentina Yurevna |
ru_RU |
| dc.contributor.author |
Chevela Vladimir Vsevolodovich |
ru_RU |
| dc.date.accessioned |
2024-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2024-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2024 |
ru_RU |
| dc.identifier.citation |
Ivanova V.Yu. / CITRATE AND XYLO-TRIHYDROXYGLUTARATE
COMPLEXES OF GADOLINIUM(III) / V.Yu. Ivanova , S.G. Bezryadin , V.V. Chevela , T.A. Kuryakova / ХХII MENDELEEV CONGRESS
ON GENERAL AND APPLIED CHEMISTRY. - Federal Territory “Sirius”, Russia, 2024. - T. 6. - C. 18. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/eng/?p_id=305427&p_lang=2 |
ru_RU |
| dc.description.abstract |
ХХII MENDELEEV CONGRESS ON GENERAL AND APPLIED CHEMISTRY |
ru_RU |
| dc.description.abstract |
The study of polynuclear complexes of gadolinium(III) with polyfunctional α-hydroxy acids is of independent
scientific interest and is of some value from a biochemical point of view. To date, we have obtained new information
about the complexation of gadolinium(III) with trihydroxyglutaric and citric acids.1
In particular, we have developed a method for the synthesis of trihydroxyglutaric acid from D-xylose, which
allows us to obtain the target product suitable for studying complexation. To the existing methods, additional stages of
purification of trihydroxyglutaric acid have been introduced, which consist of washing with diethyl ether and acetone,
as well as the use of ion exchange to remove traces of calcium ions.
By combining the methods of pH-metry, proton magnetic relaxation and mathematical simulation, complex
formation in the systems gadolinium(III)— citric acid and gadolinium(III)—xylo-trihydroxyglutaric acid was studied.
General patterns of complex formation were identified: in both systems, processes of formation of polynuclear complexes
occur, starting from the acidic pH region, which dominate almost the entire pH range studied.
For the first time, binuclear bis- Gd2(HCit)2
0 and Gd2Сit2
2- hexanuclear hexakis- Gd6(OH)2Cit6
8- and Gd6(OH)3Cit6
9-
citrate gadolinium(III) complexes were described, the formation of which can be considered typical for М3+ (Al3+, Ga3+,
In3+)—citric acid systems.
In the gadolinium(III)—xylo-trihydroxyglutaric acid system, polynuclear complexеs of the composition Gd2(H3Thgl)
(H2Thgl)+, Gd4HxThgl4 and Gd4HxThgl8 were identified for the first time. The formation of mixed-ligand hydroxo—
trihydroxyglutarate complexes of gadolinium(III) was not detected, which is apparently due to the large number of
donor groups.
References
1. Ivanova V.Y., Shurygin I.D., Chevela V.V., Ajsuvakova O.P., Semenov V.E., Bezryadin S.G. Comments on Inorganic Chemistry, 2022, 42,
109.
This paper has been supported by the Kazan Federal University Strategic Academic Leadership Program. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
CITRIC ACID |
ru_RU |
| dc.subject |
XYLO-TRIHYDROXYGLUTARIC ACID |
ru_RU |
| dc.subject |
COMPLEX FORATION |
ru_RU |
| dc.subject |
ION GADOLINIUM(III) |
ru_RU |
| dc.title |
CITRATE AND XYLO-TRIHYDROXYGLUTARATE
COMPLEXES OF GADOLINIUM(III) |
ru_RU |
| dc.type |
Conference proceedings in Russian journals and collections |
ru_RU |
|
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