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Sawtooth chains self-assembled by clusters of MnO6 octahedra within the silicate framework of K3Mn4Si10O24.33(H2O,OH)3/V,Bстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Yakubovich Olga V., Shvanskaya Larisa V., Kiriukhina Galina V., Dimitrova Olga V., Volkov Anatoly S., Volkova Olga S., Vasiliev Alexander N.
- Журнал: CrystEngComm
- Том: 24
- Год издания: 2022
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 6964
- Последняя страница: 6973
- DOI: 10.1039/D2CE00922F
- Аннотация: Single crystals of a novel phase, potassium manganese silicate hydrate, K3Mn4Si10O24.33(H2O,OH)3, doped with B and V, were obtained at hydrothermal conditions and studied using scanning electron microscopy, microprobe analysis and low temperature synchrotron X-ray diffraction. The title structure represents an original silicate framework assembled from layers with various n-membered SiO4 rings that restrict channels open in [001] direction. Corrugated chains of face-sharingMnO6 octahedra are incorporated into the space between “pendant” vertices of the tetrahedra framing 12-membered windows. This is the first example of combining two topologically different trimeric clusters of octahedra sharing faces into a single construction. The framework channels with 5- and 6-membered windows incorporate K atoms, and H2O molecules located in the channels with 7-membered openings. We assume that the stability of this crystal structure is due to thepartial substitution of Mn for V and Si for B. The magnetic subsystem in the title compound represents a rare case of quasione-dimensional arrangement of MnO6 octahedra forming sawtooth-like chain. Measurements of magnetization and heat capacity of K3Mn4Si10O24.33(H2O,OH)3/V,B indicate the absence of long-range order up to 2 K. K3Mn4Si10O24.33(H2O,OH)3/V,B structural features allow supposing it as potential multifunctional material, electrochemically active and having properties of low-dimensional magnet.
- Добавил в систему: Шванская Лариса Викторовна