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Ein neues Metagermanat: RbK[GeO3]-oligomere (Rb2GeO3) oder polymere (K2GeO3) Anionen [1]?

A new metagermanate: RbK[GeO3]-oligomeric (Rb2[GeO3]) or polymeric (K2[GeO3]) anions [1]?

  • Anorganische Und Physikalische Chemie
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Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Summary

By heating a well ground mixture of the binary oxides RbO0.59, KO0.55 and GeO2[Rb:K:Ge=3.1:2.8:2; Ni-tube; 550 °C (27d) and 450 °C (22d)] colourless single crystals of Rb2K2[(GeO3)2] were obtained for the first time: space group Pnma witha=1322.51(14) pm,b=557.25(5) pm,c=1155.09(5) pm. The structure was determined by four-circle diffractometer data [Mo-\(K_{\bar \alpha }\), 1311 from 1362I 0(hkl),R=4.0%,R w =2.6%]. The Madelung Part of Lattice Energy, MAPLE, and the Effective Coordination Numbers, ECoN, the latter via Mean Fictive Ionic Radii, MEFIR, have been calculated.

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Authors and Affiliations

  1. Institut für Anorganische und Analytische Chemie, Universität Gießen, D-W-6300, Gießen, Bundesrepublik Deutschland

    J. Hofmann & R. Hoppe

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  1. J. Hofmann
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  2. R. Hoppe
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Herrn Professor Dr. J. Zemann zum 70. Geburtstag in Dankbarkeit gewidmet.

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Hofmann, J., Hoppe, R. Ein neues Metagermanat: RbK[GeO3]-oligomere (Rb2GeO3) oder polymere (K2GeO3) Anionen [1]?. Monatsh Chem 124, 529–537 (1993). https://doi.org/10.1007/BF00819521

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  • DOI: https://doi.org/10.1007/BF00819521

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