Order-disorder (OD) structures of Rb2Zn(TeO3)(CO3)·H2O and Na2Zn2Te4O11
Author:
Eder Felix1ORCID, Stöger Berthold2ORCID, Weil Matthias1ORCID
Affiliation:
1. Division of Structural Chemistry, Institute for Chemical Analytics and Technologies , TU Wien , Getreidemarkt 9/164-SC , 1060 Vienna , Austria 2. X-Ray Centre , TU Wien , Getreidemarkt 9 , 1060 Vienna , Austria
Abstract
Abstract
Single crystals of the two alkali metal zinc oxidotellurates(IV), Rb2Zn(TeO3)(CO3)·H2O and Na2Zn2Te4O11, were obtained by reactions of mixtures of ZnO, TeO2, Rb2CO3 (molar ratios 2:3:6) and ZnO, TeO2, Na2CO3 (molar ratios 2:3:10), respectively, with small amounts of water as a mineralizer. Both compounds crystallize as order-disorder (OD) structures of layers and feature a high stacking fault probability. The crystal structure of Rb2Zn(TeO3)(CO3)·H2O is composed of layers extending parallel to (100). The structure is composed of two kinds of non-polar OD layers consisting of trigonal-pyramidal [TeO3]2−, tetrahedral [ZnO4]6−, Rb1+, and CO3
2−, H2O, Rb2+, respectively. Different centrings of the layer groups lead to an ambiguity in the stacking arrangement. The crystal structure of Na2Zn2Te4O11 is built from layers extending parallel to (001). Trigonal-pyramidal [TeO3]2− and bisphenoidal [TeO4]4− polyhedra form [Te4O11]6− groups, which are connected by longer Te–O-contacts to form 1
∞[Te8O22]12− double chains oriented along either [100] or [010]. These chains form non-polar layers, which appear alternatingly in two orientations related by a fourfold rotoinversion. The Zn2+ and Na+ cations are located at the layer interface. The stacking ambiguity is due to different lattices of adjacent layers.
Publisher
Walter de Gruyter GmbH
Subject
Inorganic Chemistry,Condensed Matter Physics,General Materials Science
Reference37 articles.
1. Galy, J., Meunier, G., Andersson, S., Åström, A. Stéréochimie des eléments comportant des paires non liées: Ge (II), As (III), Se (IV), Br (V), Sn (II), Sb (III), Te (IV), I (V), Xe (VI), Tl (I), Pb (II), et Bi (III) (oxydes, fluorures et oxyfluorures). J. Solid State Chem. 1975, 13, 142–159; https://doi.org/10.1016/0022-4596(75)90092-4. 2. Zemann, J. Zur Stereochemie des Te(IV) gegenüber Sauerstoff. Monatsh. Chem. 1971, 102, 1209–1216; https://doi.org/10.1007/bf00917174. 3. Ok, K. M., Chi, E. O., Halasyamani, P. S. Bulk characterization methods for non-centrosymmetric materials: second-harmonic generation, piezoelectricity, pyroelectricity, and ferroelectricity. Chem. Soc. Rev. 2006, 35, 710–717; https://doi.org/10.1039/b511119f. 4. Stöger, B., Weil, M. The calcium oxotellurate(IV) nitrates Ca5Te4O12(NO3)2(H2O)2 and Ca6Te5O15(NO3)2. Mineral. Petrol. 2013, 107, 253–263. 5. Christy, A. G., Mills, S. J., Kampf, A. R. A review of the structural architecture of tellurium oxycompounds. Miner. Mag. 2016, 80, 415–545; https://doi.org/10.1180/minmag.2016.080.093.
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Modularity, polytypism, topology, and complexity of crystal structures of inorganic compounds (Review);Journal of Structural Chemistry;2023-10 2. Crystal structure of K6[Zn(CO3)4];Acta Crystallographica Section E Crystallographic Communications;2023-07-14 3. Structural studies on synthetic A2−x[M2(TeO3)3]·nH2O phases (A = Na, K, Rb, Cs; M = Mn, Co, Ni, Cu, Zn) with zemannite-type structures;Mineralogy and Petrology;2023-04-15 4. A new family of rare earth – strontium tellurite chlorides, SrLn4(TeO3)4Cl6 (Ln = Ce, Nd, Sm): Synthesis, crystal structures, possible polytypism, and crystal-chemical relationships;Journal of Solid State Chemistry;2023-04 5. Symmetry Analysis of the Complex Polytypism of Layered Rare-Earth Tellurites and Related Selenites: The Case of Introducing Transition Metals;Symmetry;2022-10-07
|
|