钛铁矿型 Na2(Fe2/3Te4/3)O6。

IUCrData Pub Date : 2024-05-01 DOI:10.1107/S2414314624004826

Felix Eder , Matthias Weil , M. Bolte (Editor)

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引用次数: 0

摘要

Na2(Fe2/3Te4/3)O6（Z = 3）或 Na3(FeTe2)O9（Z = 2），三钠铁(III)二碲(VI)壬氧化物，采用钛铁矿（FeTiO3，Z = 6）结构类型，Ti 位点（位点对称性 3.）被 Na 取代，而 Fe 位点（位点对称性 3.虽然[(Fe,Te)O6]八面体只发生了轻微的畸变，但[NaO6]八面体却表现出了更强烈的畸变，这一点从键长和一些畸变参数的较大分布中可以看出。

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Ilmenite-type Na2(Fe2/3Te4/3)O6

Na₂(Fe_2/3Te_4/3)O₆ was obtained under hydrothermal conditions and adopts the ilmenite (FeTiO₃) structure type.

Na₂(Fe_2/3Te_4/3)O₆ (Z = 3) or Na₃(FeTe₂)O₉ (Z = 2), trisodium iron(III) ditellurium(VI) nonaoxide, adopts the ilmenite (FeTiO₃, Z = 6) structure type with the Ti site (site symmetry 3.) replaced by Na and the Fe site (site symmetry 3.) replaced by a mixed-occupied (Fe^III,Te^VI) site in a Fe:Te ratio of 1:2. Whereas the [(Fe,Te)O₆] octahedron is only slightly distorted, the [NaO₆] octahedron shows much stronger distortions, as revealed by a larger spread of the bond lengths and some distortion parameters.

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IUCrData

CiteScore

0.30

自引率

0.00%

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