Synthesis and crystal structure of novel complex phosphate Li5Cu2Al(PO4)4статья
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: 2 июня 2014 г.
Аннотация:A new complex phosphate Li5Cu2Al(PO4) 4 has been obtained by the flux method in the Cs-Li-Cu-V-P-O system. Its crystal structure has been determined by X-ray diffraction (R 1 = 2.74%) to be as follows: sp. gr. P1̄, a = 4.860(5) Å, b = 7.788(5) Å, c = 8.324(5) Å, α = 69.542(5)°, β = 90.016(5)°, γ = 75.318(5)°, Z = 1, and V = 284.2(4) Å3. The compound under study has a dense structure and a three-dimensional framework build up of [LiO5], [AlO6], [Cu/LiO5], and [CuO4] polyhedra and [PO4] tetrahedra. A comparative crystal-chemical analysis of two isotypic compounds with a general formula Li5Cu2 M(PO4) 4 (M = Fe, Al) has been performed. Topological relations between the Na2Mg5(PO4)4 and Li 5Cu2 M(PO4)4 crystal structures, which are characterized by different cationic compositions, are revealed.