Abstract
Using computer methods (ToposPro software package), a geometric and topological analysis is carried out and the self-assembly of the crystal structures of Cs intermetallic compounds 2Hg2-aP8, Cs2Hg4-oI12, and Cs10Hg38-tI48 is simulated. Metal clusters-precursors of crystalline structures are determined using an algorithm for decomposing structural graphs into cluster structures and by constructing a basic grid of the structure in the form of a graph whose nodes correspond to the position of the centers of clusters-precursor \(S_{3}^{0}.\) Tetrahedral metal clusters K4 are established in Cs2Hg2-cI2; octahedral metal clusters K6, in Cs2Hg4; and a new type of polyhedral metal cluster K21 = Cs@Cs4Hg16, in Cs10Hg38-tI48. The symmetry and topological code of the processes of self-assembly of crystal structures of intermetallic compounds CsnHgk from precursors S30 is reconstructedin the form chain \(S_{3}^{1}\) → microlayer \(S_{3}^{2}\) → microframework \(S_{3}^{3}.\)
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Funding
The analysis of the self-assembly of crystalline structures of intermetallic compounds was supported by the Ministry of Education and Science of the Russian Federation as part of a state task of the Federal Research Center “Crystallography and Photonics” of the Russian Academy of Sciences, nanocluster analysis was performed with the support of the Russian Science Foundation as part of project nos. 20-13-00054 and 21-73-30019, and the topological analysis was carried out with the support of the Ministry of Education and Science of the Russian Federation as part of state task no. 0778-2020-0005.
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Shevchenko, V.Y., Blatov, V.A. & Ilyushin, G.D. Structural Chemistry of Intermetallic Compounds: Geometric and Topological Analysis; Cluster Precursors K4, K6, and K21; and Self-Assembly of Crystal Structure S2Hg2-aP8, Cs2Hg4-oI12, and Cs10Hg38-tI48. Glass Phys Chem 48, 155–162 (2022). https://doi.org/10.1134/S1087659622030099
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DOI: https://doi.org/10.1134/S1087659622030099