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Nonstoichiometric Ellenbergerite-Type Phosphates: HydrothermalSynthesis, Crystal Chemistry, and Magnetic Behaviorстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 мая 2022 г.
- Авторы: Shvanskaya Larisa V., Yakubovich Olga V., Krikunova Polina V., Kiriukhina Galina V., Ivanova Anna G., Volkov Anatoly S., Dimitrova Olga V., Borovikova Elena Yu, Volkova Olga S., Vasiliev Alexander N.
- Журнал: Inorganic Chemistry
- Том: 61
- Номер: 12
- Год издания: 2022
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 4879
- Последняя страница: 4886
- DOI: 10.1021/acs.inorgchem.1c03597
- Аннотация: We synthesized single crystals of Na0.55Ni6(OH)3(H0.61PO4)4 (I)and polycrystals of (Na, Ni)0.64Ni5.68(OH)3(H0.67PO4)4 (II) with ellenbergeritelikestructures using the hydrothermal method. The phases crystallize in thehexagonal space group P63mc with the following unit cell parameters: a =12.5342(1) Å, c = 4.9470(1) Å, and V = 673.08(2) Å3 for I; a = 12.4708(2) Å, c =4.9435(2) Å, and V = 665.82(2) Å3 for II; and Z = 2. Their crystal structures arebased on a 3D framework built from NiO6 octahedra and PO4 tetrahedra. Thedifference between I and II lies in the way the structural channels are filled alongthe [001] direction. These channels accommodate segments of Na- and (Na, Ni)-centered chains of face-sharing octahedra in the structures I and II, respectively. The magnetic susceptibility χ and the specific heatCp evidence pronounced low-dimensional magnetic behavior at elevated temperatures and the formation of the weakly ferromagneticlong-range order at TN I = 61 K and TNII = 63 K. Analysis of the χ(T) data within both chain and dimer spin models allows theestimation of the leading exchange interaction parameters in the compounds under study.
- Добавил в систему: Шванская Лариса Викторовна