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Rubidium vanadium(III) vanadyl(IV) phosphate, Rb3V3+(V4+O)(PO4)(H0.5PO4)2: crystal chemistry and low dimensional magnetismстатья
- Авторы: Yakubovich Olga, Kiriukhina Galina, Volkov Anatoliy, Dimitrova Olga, Chumakov Ratibor, Shvanskaya Larisa, Vasiliev Alexander N.
- Журнал: Dalton Transactions
- Том: 54
- Год издания: 2025
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 1103
- Последняя страница: 1110
- DOI: 10.1039/D4DT02719A
- Аннотация: In this paper, we present the synthesis and characterization of a rubidium vanadium(III) vanadyl(IV) phosphate, obtained under hydrothermal conditions. The new compound crystallizes in the triclinic space group P-1 with the unit cell parameters a = 9.637(1), b = 12.254(2), c = 12.336(2) Å, α = 105.82(1), β = 104.81(1) and γ = 102.75(1)o. Its crystal structure was determined by single crystal X-ray diffraction. The structure of Rb3V3+(V4+O)(PO4)(H0.5PO4)2 is formed from V3+-centered octahedra sharing all oxygen vertices and one edge with phosphate tetrahedra to form ribbons parallel to the [011] direction. These ribbons are further linked via V4+O5 polyhedra in a three-periodic framework with channels running parallel to a and b axis. Rb atoms occupy positions inside the framework channels. The title compound reaches long range ordered antiferromagnetic state at TN = 2.1 K and formally demonstrates high value of magnetic frustration parameter f equal to the ratio of the Weiss and Neel temperatures |Θ|/TN = 15, which can be attributed to the reduced dimensionality of the magnetic subsystem. At <TN, the magnetization curve evidences the signature of the 1/3 plateau.
- Добавил в систему: Шванская Лариса Викторовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | акт экспертизы | акт.pdf | 673,0 КБ | 15 ноября 2024 [GalinaKiriukhina] |