NMR Study Conformations of Calcium Gluconate in the Aqueous Solution
- Авторы: Akhmetov M.1, Konygin G.2, Rybin D.2, Petukhov V.1, Gumarov G.1, Konov A.1
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Учреждения:
- Zavoisky Physical-Technical Institute, Russian Academy of Sciences
- Physical-Technical Institute
- Выпуск: Том 48, № 10 (2017)
- Страницы: 971-979
- Раздел: Original Paper
- URL: https://journals.rcsi.science/0937-9347/article/view/247853
- DOI: https://doi.org/10.1007/s00723-017-0918-5
- ID: 247853
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Аннотация
Different spatial structures that arise due to rotation around simple bonds without violating the integrity of the molecule (without breaking chemical bonds) are called conformations. 1H nuclear magnetic resonance (NMR) study of the spatial structure of calcium gluconate in the aqueous solution has been carried out. It was shown that molecules of calcium gluconate exist in the form of two conformations: zigzag 1-P and cyclic 3G+. The results of homonuclear 2D 1H NMR spectroscopy indicate the predominantly zigzag conformation. It was found that the intermolecular hydrogen bonds are formed and the spatial structure of molecules changes at the increase in the solution concentration. The observed concentration behavior of the conformation of calcium gluconate is also associated with the presence of the intramolecular hydrogen bonds –O(C4)H··O(C2).
Об авторах
M. Akhmetov
Zavoisky Physical-Technical Institute, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: mansik86@mail.ru
Россия, Kazan
G. Konygin
Physical-Technical Institute
Email: mansik86@mail.ru
Россия, Ural Branch, Izhevsk
D. Rybin
Physical-Technical Institute
Email: mansik86@mail.ru
Россия, Ural Branch, Izhevsk
V. Petukhov
Zavoisky Physical-Technical Institute, Russian Academy of Sciences
Email: mansik86@mail.ru
Россия, Kazan
G. Gumarov
Zavoisky Physical-Technical Institute, Russian Academy of Sciences
Email: mansik86@mail.ru
Россия, Kazan
A. Konov
Zavoisky Physical-Technical Institute, Russian Academy of Sciences
Email: mansik86@mail.ru
Россия, Kazan