Structure Types. Part 11: Space groups (135) P42/mbc – (123) by P. Villars, K. Cenzual, R. Gladyshevskii (auth.), P.

By P. Villars, K. Cenzual, R. Gladyshevskii (auth.), P. Villars, K. Cenzual (eds.)

Volume forty three of team III bargains with crystallographic info of either intermetallic and classical inorganic compounds, therefore forming an replace of the previous Landolt-Börnstein volumes III/6 (Structure facts of components and Intermetallic levels) and III/7 (Crystal constitution facts of Inorganic Compounds). It doesn't comprise compounds that comprise C-H bonds. additionally, unlike the sooner variation the current quantity offers the knowledge in a unique, extra glossy association - recognized crystal buildings are mixed in teams based on their kind of constitution; every one constitution variety is for that reason represented via an entire set of crystallographic facts preserving for all isotypic constructions, with the information comprising area team, cellphone parameters and atom coordinates. feedback, descriptions and figures are supplied the place priceless. the current subvolume A11, which makes use of the databases TYPIX and Pauling dossier, varieties the 11th contribution to quantity forty three, that is going to be released in a sequence of subvolumes. Subvolumes A1 - A10 are already available.

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3539 nm3, Z = 8 site Wyck. sym. x y z O1 Se2 O3 8h 8h 8g m.. m.. 63802 0 0 1 /4 occ. 019, T = 286 K Remarks: Only stable modification at ambient pressure. Space groups (94) P42212, (106) P42bc,(114) P-421c and (117) P-4b2 were tested and rejected. The effect of pressure is studied in [3]. , Galy J. (1992), Z. Kristallogr. 202, 99–107. D. (1937), J. Am. Chem. Soc. 59, 789–794. , Bouvier P. (2002), J. Solid State Chem. 168, 184–191. 1007/978-3-642-22847-6_5 # Springer-Verlag Berlin Heidelberg 2012 NH4AlF4 α-lt 1 NH4AlF4 α-lt Structure Types tP24 [NH4]AlF4 (135) P42/mbc – hfcb NH4AlF4 α-lt [1] Structural features: AlF6 octahedra (slightly rotated around [001]) share vertices to form infinite slabs; NH4 tetrahedra between the slabs.

Lett. 81, 2711–2714. [3] Schwarz U. (2004), Z. Kristallogr. 219, 376–390. 1007/978-3-642-22847-6_4 # Springer-Verlag Berlin Heidelberg 2012 SeO2 α 1 SeO2 α Structure Types tP24 SeO2 (135) P42/mbc – h2g SeO2 α [2], Strukturbericht notation C47 Structural features: Infinite zigzag chains of vertex-linked :SeO3 ψ-tetrahedra are interconnected via longer Se-O interactions to form a 3D-framework. See Fig. 1. Fig. 1. SeO2 α Arrangement of :SeO3 ψ-tetrahedra (Se atoms dark, O atoms light). For clarity, atoms located in the cell but belonging to ψ-tetrahedra with the Se atom in a neighboring cell are omitted.

203 1 occ. 066, T = 5 K Remarks: Phase stable at T < 150 K. Hydrogen atoms are not taken into consideration for Pearson symbol, Wyckoff sequence and atomic environments. L. (1982), Mater. Res. Bull. 17, 391–397. 1007/978-3-642-22847-6_6 # Springer-Verlag Berlin Heidelberg 2012 ZnSb2O4 1 ZnSb2O4 Structure Types tP28 ZnSb2O4 (135) P42/mbc – h2gd ZnSb2O4 [2]; FeSb2O4 [3], schafarzikite; CuAs2O4 [4], trippkeite Structural features: Infinite chains of edge-linked ZnO6 octahedra and infinite chains of vertex-linked :SbO3 ψ-tetrahedra share atoms to form a 3D-framework.

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