Synthesis and Crystal Structure of Rb-1.5(NH4)(0.5){Cu(P2O7)}: Comparative Crystal Chemistry and TopologySymmetry Analysis in Terms of Extended OD Theory

Chernyatieva, A.P.; Aksenov, S.M.; Krivovichev, S.V.; Yamnova, N.A.; Burns, P.C.

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: 13 июня 2019 г.

Авторы: Chernyatieva A.P., Aksenov S.M., Krivovichev S.V., Yamnova N.A., Burns P.C.
Журнал: Crystallography Reports
Том: 64
Номер: 2
Год издания: 2019
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 239
Последняя страница: 246
DOI: 10.1134/S1063774519020081
Аннотация: A new compound of the Rb-1.5(NH4)(0.5){Cu(P2O7)} composition, obtained by the high-temperature reaction method from a mixture of RbNO3, Cu(NO3)(2), and (NH4)(4)P2O7, has been studied using X-ray diffraction. This compound is crystallized in the orthorhombic system, sp. gr. Pnma, a = 15.146(3) angstrom, b=5.183(1) angstrom, c = 10.096(2) angstrom, V = 792.6(3) angstrom(3). The structure has been interpreted and refined to the final reliability factor R-1 = 6.56% in the anisotropic approximation of atomic displacements, using 415I > 3 sigma(I). Rb-1.5(NH4)(0.5){Cu(P2O7)} belongs to the group of copper diorthophosphates of alkaline elements, described by the general formula {Cu(P2O7)}. The basis of its crystal structure is a set of polar heteropolyhedral copper-phosphate layers of the {Cu(P2O7)}(2-) composition, formed by vertex-sharing CuO5 pyramids and tetrahedral diorthogroups P2O7, which are linked via rubidium cations. Based on symmetry interlayer connections, one can predict a series of partially ordered structures using the following groupoid: -PO P(n)m2(1); sigma-PO P12(1)/m1 || P?m2(1).
Добавил в систему: Аксенов Сергей Михайлович

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Synthesis and Crystal Structure of Rb-1.5(NH4)(0.5){Cu(P2O7)}: Comparative Crystal Chemistry and TopologySymmetry Analysis in Terms of Extended OD Theoryстатья

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