Role of Succinate Ions in the Polymorphism of Coordination Polymers of f-Metals
- Авторы: Serezhkin V.N.1, Rogaleva E.F.1, Shilova M.Y.1, Novikov S.A.1, Serezhkina L.B.1
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Учреждения:
- Samara National Research University
- Выпуск: Том 92, № 8 (2018)
- Страницы: 1535-1541
- Раздел: Structure of Matter and Quantum Chemistry
- URL: https://bakhtiniada.ru/0036-0244/article/view/170091
- DOI: https://doi.org/10.1134/S0036024418080228
- ID: 170091
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Аннотация
The role of succinate ions in the structure of crystals containing 262 crystallographically nonequivalent succinate ions and atoms of f-elements A (А = U(VI), La(III), or lanthanides) is analyzed using the TOPOS-InterMol program complex. It is estimated that С4Н4О\(_{4}^{{2 - }}\) anions can display 10 topologically different types of coordination to the atoms of metals A, acting as three- or four-dentate ligands and forming from three to eight О–А bonds. It is estimated that of the two theoretically possible types of metallacycles, succinate ions usually form tetratomic cycles. Alternative heptatomic cycles are formed by only 4 out of 262 succinate ions. It is shown the type of a di-anion’s coordination affects that of its preferable coordination (trans φ3 or gauche φ1) in a crystal’s structure. It is estimated that a change in the type of coordination or conformation of succinate ions can determine the polymorphism of succinate-containing polymers.
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Об авторах
V. Serezhkin
Samara National Research University
Автор, ответственный за переписку.
Email: serezhkin@samsu.ru
Россия, Samara, 443011
E. Rogaleva
Samara National Research University
Email: serezhkin@samsu.ru
Россия, Samara, 443011
M. Shilova
Samara National Research University
Email: serezhkin@samsu.ru
Россия, Samara, 443011
S. Novikov
Samara National Research University
Email: serezhkin@samsu.ru
Россия, Samara, 443011
L. Serezhkina
Samara National Research University
Email: serezhkin@samsu.ru
Россия, Samara, 443011
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