Information card for entry 2108248

Structure parameters

• Common name: potassium iron silicon oxide
• Formula: Fe K2 O12 Si5
• Calculated formula: Fe K2 O12 Si5
• Title of publication: Crystal structures of K~2~[<i>X</i>Si~5~O~12~] (<i>X</i> = Fe^2+^, Co, Zn) and Rb~2~[<i>X</i>Si~5~O~12~] (<i>X</i> = Mn) leucites: comparison of monoclinic <i>P</i>2~1~/<i>c</i> and <i>Ia</i>{øverline 3}<i>d</i> polymorph structures and inverse relationship between tetrahedral cation (<i>T</i> = Si and <i>X</i>)—O bond distances and intertetrahedral <i>T</i>—O—<i>T</i> angles
• Authors of publication: Bell, Anthony M. T.; Henderson, C. Michael B.
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 2018
• Journal volume: 74
• Journal issue: 3
• a: 13.2574 ± 0.0005 Å
• b: 13.6739 ± 0.0006 Å
• c: 12.924 ± 0.0005 Å
• α: 90°
• β: 93.048 ± 0.003°
• γ: 90°
• Cell volume: 2339.55 ± 0.16 ų
• Cell temperature: 293 K
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 4
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Residual factor R(I) for significantly intense reflections: 6.9441
• Goodness-of-fit parameter for all reflections: 1.3541
• Method of determination: powder diffraction
• Diffraction radiation wavelength: 1.5418 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes