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Crystal chemistry of Li,GeVI-germanates: Combinatorial-topological analysis and modeling of crystal structures

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Abstract

The combinatorial-topological analysis of the structures of framework Li,Ge-germanates of the compositions Li2GeVIGe IV2 O6(OH)2 (sp. gr. B 2/b), Li2GeVIGe IV3 O9 (sp. gr.Pcca), Li4Ge VI2 Ge VI7 O20 (sp. gr. C2), and Li2GeVIGe IV6 O15 (sp. gr. Pbcn) has been made with the separation of subpolyhedral structural units (SPSUs) built by octahedra and tetrahedra. The topologically invariant SPSUs are separated in three-dimensional frameworks of the structures. A possible mechanism of the matrix assemblage from the SPSU invariants in crystal structures of the framework Li,Ge-germanates is suggested.

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Authors and Affiliations

  1. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia

    G. D. Ilyushin & L. N. Demianets

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  1. G. D. Ilyushin
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  2. L. N. Demianets
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__________

Translated from Kristallografiya, Vol. 46, No. 5, 2001, pp. 875–883.

Original Russian Text Copyright © 2001 by Ilyushin, Demianets.

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Ilyushin, G.D., Demianets, L.N. Crystal chemistry of Li,GeVI-germanates: Combinatorial-topological analysis and modeling of crystal structures. Crystallogr. Rep. 46, 801–809 (2001). https://doi.org/10.1134/1.1405867

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