Abstract
A search for crystal structures of A n O m metal oxides containing icosahedral i–A@A12 cluster precursors is performed (TOPOS program package, ICSD and CRYSTMET databases). Among 1802 metal oxides, the local region represented by i–Cs@Cs12 is determined in the Cs7O (P-6m2) metal oxide. In the case of the (Rb13)(Rb2O)3 (Fm-3c, cF184, V = 12409.8 Å3) metal oxide, the i–Rb@Rb12 cluster precursor with the symmetry m-3 and cluster spacers in the form of Rb–O–Rb chains, which occupy the pores in the threedimensional framework, are identified. Cluster i–Rb@Rb12 occupies position 8b with the highest possible crystallographic symmetry m-3 for icosahedron. The topological type of the basic 3D network, which characterizes the packing of cluster precursors Rb13, corresponds to a simple cubic 3D network P c (Pm-3m, cP1) with CN = 6. The symmetric and topological codes of the self-assembly processes of the crystal structure from the nanocluster precursors S 03 is fully reconstructed in the following form: primary chain S 13 → microlayer S 23 → microframework S 33 . Cluster precursors in the primary chain are flipped through 90° and are characterized by the maximum possible number of Rb–Rb bonds corresponding to 8 and this mechanism of local binding is realized at all stages of the self-assembly of the 3D framework structure. During the assembly of the primary chain and microlayer, there is additional binding of the Rb@Rb12 icosahedra via the Rb atoms of three-atomic cluster spacers Rb–O–Rb. In the 3D framework structure, in the local environment of Rb@Rb12, there are 12 Rb–O–Rb cluster spacers.
Similar content being viewed by others
References
Shevchenko, V.Ya., Blatov, V.A., and Ilyushin, G.D., Intermetallic compounds of the NaCd2 family perceived as assemblies of nanoclusters, Struct. Chem., 2009, vol. 20, no. 6, pp. 975–982.
Blatov, V.A., Ilyushin, G.D., and Proserpio, D.M., Nanocluster model of intermetallic compounds with giant unit cells: ß, ß'-Mg2Al3 polymorphs, Inorg. Chem., 2010, vol. 49, no. 4, pp. 1811–1818.
Pankova, A.A., Ilyushin, G.D., and Blatov, V.A., Nanoclusters based on pentagondodecahedra with shells in the form of D32, D42, and D50 deltahedra in crystal structures of intermetallic compounds, Crystallogr. Rep., 2012, vol. 57, no. 1, pp. 1–9.
Pankova, A.A., Blatov, V.A., Ilyushin, G.D., and Proserpio, D.M., γ-Brass polyhedral core in intermetallics: The nanocluster model, Inorg. Chem., 2013, vol. 52, no. 22, pp. 13094–13107.
Shevchenko, V.Ya., Blatov, V.A., and Ilyushin, G.D., New types of two-layer nanoclusters with an icosahedral core, Glass Phys. Chem., 2013, vol. 39, no. 3, pp. 229–234.
Pankova, A.A., Akhmetshina, T.G., Blatov, V.A., and Proserpio, D.M., A collection of topological types of nanoclusters and its application to icosahedra-based intermetallics, Inorg. Chem., 2015, vol. 54, no. 13, pp. 6616–6630. http://topospro.com/.
Shevchenko, V.Ya., Blatov, V.A., and Ilyushin, G.D., Modeling of self-organization processes in crystalforming systems: Symmetry and topological codes of cluster self-assembly of a 2D layered icosahedral structure of Sc18B238 (Pbam, oP514), Glass Phys. Chem., 2016, vol. 42, no. 3, pp. 221–229.
Ilyushin, G.D., Modeling of the self-organization processes in crystal-forming systems. Tetrahedral metal clusters and the self-assembly of crystal structures of intermetallic compounds, Crystallogr. Rep., 2017, vol. 62, no. 5, pp. 670–682.
Ilyushin, G.D., Symmetric and topological code of cluster self-assembly of intermetallics A2 [16] B4 [12] of Friauf family Mg2Cu4 and Mg2Zn4, Crystallogr. Rep., 2018, vol. 63, no. 3 (in press).
Blatov, V.A., Shevchenko, A.P., and Proserpio, D.M., Applied topological analysis of crystal structures with the program package ToposPro, Cryst. Growth Des., 2014, vol. 14, no. 7, pp. 3576–3585. http://topospro. com/.
Inorganic Crystal Structure Database (ICSD), Germany: Fachinformationszentrum Karlsruhe, USA: Natl. Inst. Standard Technol.
Villars, P. and Cenzual, K., Pearson’s Crystal Data-Crystal Structure Database for Inorganic Compounds (PCDIC), Materials Park, OH: ASM Int., 2007.
Ilyushin, G.D., Modelirovanie protsessov samoorganizatsii v kristalloobrazuyushchikh sistemakh (Modeling of Self-Organization Processes in Crystal-Forming Systems), Moscow: Editorial URSS, 2003.
Ilyushin, G.D. and Dem’yanets, L.N., Model’ matrichnoi sborki kristallicheskikh struktur. Fizika kristallizatsii (Model of Matrix Assembly of Crystal Structures. Crystallization Physics), Moscow: Fizmatlit, 2002.
Ilyushin, G.D., Theory of cluster self-organization of crystal-forming systems. Geometrical-topological modeling of nanocluster precursors with a hierarchical structure, Struct. Chem., 2012, vol. 20, no. 6, pp. 975–1043.
Simon, A., Metallreichstes caesiumoxid—Cs7O, Zeitschr. Anorg. Allgem. Chem., 1976, vol. 422, pp. 208–218.
Deiseroth, H.J. and Simon, A., Kristallisationsvorgange bei metallreichen rubidiumoxiden, Zeitschr. Naturforsch. B, 1978, vol. 33, pp. 714–722.
Kudou, K., Okada, S., and Hamano, K., Preparation and crystal structure of B6O, Kanagawa Daigaku Kogaku Kenkyusho Shoho, 1996, vol. 19, pp. 60–65.
Waber, J.T. and Cromer, D.T., Orbital radii of atoms and ions, J. Chem. Phys., 1965, vol. 42, no. 12, pp. 4116–4123.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.Ya. Shevchenko, V.A. Blatov, G.D. Ilyushin, 2018, published in Fizika i Khimiya Stekla.
Rights and permissions
About this article
Cite this article
Shevchenko, V.Y., Blatov, V.A. & Ilyushin, G.D. The Symmetric and Topological Code of the Cluster Self-Assembly of the Icosahedral Structure of (Rb13)(Rb2O)3 (Fm-3c, cF184) Metal Oxide. Glass Phys Chem 44, 55–61 (2018). https://doi.org/10.1134/S1087659618020141
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1087659618020141