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Crystal structure and magnetic properties of a new layered sodium nickel hydroxide phosphate Na2Ni3(OH)2(PO4)2статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 декабря 2013 г.
- Авторы: Yakubovich O., Kiriukhina G., Dimitrova O., Volkov A., Golovanov A., Volkova O., Zvereva E., Baidya S., Saha-Dasgupta T., Vasiliev A.
- Журнал: Dalton Transactions
- Том: 42
- Номер: 41
- Год издания: 2013
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 14718
- Последняя страница: 14725
- DOI: 10.1039/C3DT51657A
- Аннотация: Mixed sodium nickel hydroxide phosphate, Na2Ni3(OH)2(PO4)2, has been synthesized hydrothermally from the system NiCO3–Na4P2O7–NaCl–H2O. Its monoclinic crystal structure has been determined by single crystal X-ray diffraction: a = 14.259(5), b = 5.695(2), c = 4.933(1) Å, β = 104.28(3)°, space group C2/m, Z = 2, ρc = 3.816 g cm−3, R = 0.026. The underlying spin model has been characterized in terms of first-principles electronic structure calculations. The compound is formed by alternating layers of [NiO6] octahedra and [NaO7] polyhedra, combined in the [100] direction with tetrahedral [PO4] oxocomplexes and hydrogen bonds. The novel phase is treated as an isostructural variant of the two-dimensional potassium manganese hydroxide vanadate, K2Mn3(OH)2(VO4)2, which can be formally obtained by morphotropic substitutions of all positions in the cationic sublattice. The stripe arrangement of Ni2+ ions (S = 1) within [NiO4(OH)2] layers of Na2Ni3(OH)2(PO4)2 is unique in the sense that its magnetic topology places it in between widely discussed honeycomb and kagomé lattices. The Na2Ni3(OH)2(PO4)2 is a low-dimensional magnet, which reaches the short-range correlation regime at Tmax = 38.4 K and orders antiferromagnetically at TN = 33.4 K.
- Добавил в систему: Зверева Елена Алексеевна