Specific Features of the Crystal Chemistry of Layered Uranyl Compounds with the Ratio UO2: TO4 = 5 : 8 (T = S6+, Cr6+, Se6+, Mo6+)
- Авторы: Nazarchuk E.1, Siidra O.1, Charkin D.2
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Учреждения:
- Institute of Earth Sciences
- Chemical Faculty
- Выпуск: Том 60, № 4 (2018)
- Страницы: 352-361
- Раздел: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/224588
- DOI: https://doi.org/10.1134/S1066362218040033
- ID: 224588
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Аннотация
Two new U(VI) compounds templated with organic molecules, [(CH6N)3(H2O)][(CH6N)2(C3H10N)· (H2O)][(UO2)5(CrO4)8(H2O)] (1) and [(C6H10N3O3)(H5O2)2(H2O)][(H5O2)3(H2O)][(UO2)5(SO4)8(H2O)] (2), were prepared by combination of hydrothermal synthesis and isothermal evaporation methods. Compounds 1 and 2 crystallize in the monoclinic system, space group P21/n, a = 21.921(5), b = 11.016(2), c = 22.021(5) Å, β = 90.571(5)° for 1 and P2/c, a = 18.1693(17), b = 10.0732(10), c = 30.098(3) Å, β = 103.427(2)° for 2. The reflections from the single crystals were collected at 100 K. The structures were solved by the direct methods and refined to R1 = 0.053 and 0.070 for 1 and 2, respectively. The crystal structures of 1 and 2 are based on [(UO2)5(TO4)8(H2O)]6– modular layers (T = S6+, Cr6+) between which protonated organic molecules, water molecules, and hydroxonium ions are located. Specific features of the crystal chemistry of U(VI) compounds with tetrahedral oxoanions with the ratio UO2: TO4 = 5: 8 (T = S6+, Cr6+, Se6+, Mo6+) are considered.
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Об авторах
E. Nazarchuk
Institute of Earth Sciences
Автор, ответственный за переписку.
Email: e_nazarchuk@mail.ru
Россия, Universitetskaya nab. 7/9, St. Petersburg, 199034
O. Siidra
Institute of Earth Sciences
Email: e_nazarchuk@mail.ru
Россия, Universitetskaya nab. 7/9, St. Petersburg, 199034
D. Charkin
Chemical Faculty
Email: e_nazarchuk@mail.ru
Россия, Moscow