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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 557 (1988), S. 31-39 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A New Oxoindate K2Na3[InO4]We prepared the hitherto unknown K2Na3[InO4] on two different ways as single crystals a)by heating mixtures of In2O3, NaO0.48 and KO0.60 (In:Na:K = 1:3.3:2.2) [Ag-cylinder, 580°C, 42 d].b)by the oxidation of NaIn with Na2O2 and KO0.87 (In:Na:K = 1:2:6) [Ag-cylinder, 480°C, 8 d].The single crystals of K2Na3[InO4] are colourless, all transparent and rough.The type of structure was elucidated by 4-circle diffractometer (Siemens AED 2) data: Pnnm; a = 955.5(4), b = 927.6(4), c = 753.4(2) pm; Z = 4; MoKα; 909 of 1031 I0(hkl); R = 9.7%, Rw = 3.9%.The Madelung Part of Lattice Energy, MAPLE, is calculated and discussed.
    Notes: Auf zwei Wegen wurde K2Na3[InO4] in Form von Einkristallen neu dargestellt: a)durch Tempern inniger Gemenge von In2O3 mit NaO0,48 und KO0,60 (Einwaage vor Verreiben In:Na:K = 1:3,3:2,2) (geschl. Ag-Zylinder, 580°C, 42 d).b)durch die Oxydation der intermetallischen Phase NaIn mit Na2O2 und KO0,87 (In:Na:K = 1:2:6) [geschl. Ag-Zylinder, 480°C, 8 d].Die Einkristalle sind farblos, durchscheinend und derb geformt. Die Isotypie mit K2Na3[TlO4] [3] wird durch Einkristalldaten (Vierkreis-Diffraktometer Siemens AED 2) belegt: Pnnm; a = 955,5(4), b = 927,6(4), c = 753,4(2) pm; Z = 4; MoKα; 909 von 1031 I0(hkl); R = 9,7%, Rw = 3,9%.Der Madelunganteil der Gitternergie, MAPLE, wird berechnet und diskutiert.
    Additional Material: 2 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 567 (1988), S. 69-76 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Note on the Structure of A2[HgO2] (A = K, Rb), Rb2 [NiO2], and Rb1.4K0.6[NiO2]Single crystals of K2[HgO2] (I), Rb2[HgO2] (II), Rb2[NiO2] (III) and Rb1,4K0,6[NiO2] (IV) have been prepared [mercurates: colourless; niccolates: dichroitic ambercoloured/green (III) resp. yellow/green (IV)] mid characterized by X-riay single crystal methods. They crystallize tetragonally in the Na2[HgO2]-type of structure (space group I4/mmm, Z = 2) with I: a = 392.0(1), c = 1397.4(3) pm; II: a = 413.9(1), c = 1423.9(2) pm; III: a = 416.6(1), c = 1314.6(2) pm; IV: a = 409.2(2), c = 1304.4(6) pm. The crystal structures have been refined (four circle diffractometer). The Madelung parts of lattice energy, MAPLE, effective coordination numbers, ECoN, these via mean fictive ionic radii, MEFIR, are calculated and discussed.
    Notes: K2[HgO2] (I) wurde erneut, Rb2[HgO2] (II), Rb2[NiO2] (III) sowie Rb1,4K0,6[SiO2](IV) erstmals in einkristalliner Form dargestellt und röntgenographisch untersucht. Kristalle der Mercurate sind farblos, jene der Niccolate dichroitisch bernsteinfarben/grün (III) bzw. gelb/grün (IV). Die Oxide kristallisieren tetragonal im Na2[HgO2]-Typ (Raumgruppe I4/mmm, Z = 2) mit I: a = 392,0(1), c = 1397,4(3) pm; II: a = 413,9(1), c = 1423,9(2) pm; III: a = 416,6(1), c = 1314,6(2) pm; IV: a = 409,2(2), c = 1304,4(6) pm. Die Strukturparameter wurden verfeinert (Vierkreisdiffraktometerdaten). Der Madelunganteil der Gitterenergie, MAPLE, sowie Effektive Koordinationszahlen, ECoN, diese über Mittlere Fiktive Ionenradien, MEFIR, werden berechnet und diskutiert.
    Additional Material: 6 Tab.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 547 (1987), S. 188-198 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Metal Oxides with Doubles of Tetrahedra as Building Units: Rb6[Tl2O6] and Cs6[In2O6]We prepared the hitherto unknown Rb6[Tl2O6] and Cs6[In2O6] by heating mixtures of Tl2O3 and RbO0.60 (Rb:Tl = 3.5:1) as well as In2O3 and CsO0.53 (Cs:In = 3.5:1) as single crystals [closed Ag-cylinder, 650°C, 14 d]. The single crystals of Rb6[Tl2O6] are yellow, those of Cs6[In2O6] pale yellow, all transparent and rude. The new type of structure was elucidated by 4-circle-diffractometer (PW 1100) data.Rb6[Tl2O6]: P21/a; a = 1145,7(3), b = 713,3(1), c = 783,9(2) pm, β = 93,73° (2), Z = 2; Ag-Kα, 2100 out of 2531 I0(hkl), R = 9,6% and Rw = 8,9%.Cs6[In2O6]: P21/a; a = 1178,5(4), b = 730,7(2), c = 816,3(2) pm, β = 95,38° (3), Z = 2; Mo-Kα, 1584 out of 2032 I0(hkl), R = 9,25%, and Rw = 8,44%.The Madelung Part of Lattice Energy, MAPLE, is calculated and discussed.
    Notes: Neu dargestellt wurden Rb6[Tl2O6] und Cs6[In2O6] durch Tempern inniger Gemenge von Tl2O3 mit RbO0,60 (Rb:Tl = 3,5:1) bzw. In2O3 mit CsO0,53 (Cs:In = 3,5:1) als Einkristalle [geschl. Ag-Zylinder, 650°C, 14 d]. Die Einkristallen von Rb6[Tl2O6] sind gelb, die von Cs6[In2O6] hellgelb, alle durchsichtig und derb. Der neue Strukturtyp wird durch Einkristalldaten (Vierkreisdiffraktometer PW 1100) belegt.Rb6[Tl2O6]: P21/a; a = 1145,7(3), b = 713,3(1), c = 783,9(2) pm, β = 93,73° (2), Z = 2; Ag-Kα, 2100 von 2531 I0(hkl), R = 9,6% und Rw = 8,9%.Cs6[In2O6]: P21/a; a = 1178,5(4), b = 730,7(2), c = 816,3(2) pm, β = 95,38° (3), Z = 2; Mo-Kα, 1584 von 2032 I0(hkl), R = 9,25%, Rw = 8,44%.Der Madelunganteil der Gitterenergie, MAPLE, wird für beide berechnet und diskutiert.
    Additional Material: 6 Ill.
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  • 4
    Publication Date: 1988-02-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 5
    Publication Date: 1988-01-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 6
    Publication Date: 1987-04-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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