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  • 1
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    �ber Oxostannate(II). V. Na4[SnO3] - das erste Oxostannat(II) mit ?Inselstruktur? (1984)
    Wiley
    Details
    Publication Date: 1984-08-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 2
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    K4PbO4 und K4GeO4 - ein Vergleich (1983)
    Wiley
    Details
    Publication Date: 1983-10-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 3
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    Oxydationsprodukte intermetallischer Phasen. III. Tieftemperaturformen von K2Sn2O3 und Rb2Sn2O3 und eine Notiz �ber K2Ge2O3 (1984)
    Wiley
    Details
    Publication Date: 1984-02-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 4
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    Neues �ber Oxogermanate. 1. Zur Kenntnis von K4GeO4 (1983)
    Wiley
    Details
    Publication Date: 1983-10-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 5
    Electronic Resource
    Electronic Resource
    Oxydationsprodukte intermetallischer Phasen. III. Tieftemperaturformen von K2Sn2O3 und Rb2Sn2O3 und eine Notiz über K2Ge2O3 (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 509 (1984), S. 145-152 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oxidation Products of Intermetallic Compounds. III. Low Temperature Forms of K2Sn2O3 and Rb2Sn2O3 and a Notice about K2Ge2O3By controlled oxidation of KSn (at 320°C) and RbSn (at 410°C) with O2 the hitherto unknown low temperature forms of K2Sn2O3 (a = 8.4100(8) Å) and Rb2Sn2O3 (a = 8.6368(8) Å) are obtained, which are isotopic with cubic K2Pb2O3. Oxidation at higher temperatures (at 510-5207°C) leads to the well-known HT-forms. The Madelung Part of Lattic Energie, MAPLE, is calculated for both compounds.K2Pb2O3, Rb2Pb2O3, Cs2Pb2O3, and Cs2Sn2O3 have been prepared too by oxidation of KPb, RbPb, CsPb, and CsSn.Oxidation of KGe (at 400°C) leads to the first oxogermanate(II), K2Ge2O3 (cubic a = 8.339(1) Å, isotypic with K2Pb2O3) together with K6Ge2O7.
    Notes: Aus KSn bzw. RbSn entstehen durch direkte Oxydation K2Sn2O3 bzw. Rb2Sn2O3 bei 320°C bzw. 410°C die bislang unbekannten „Tieftemperaturformen“ (a = 8,4100(8)Å bzw. a = 8,6368(8)Å), isotyp mit kubischem K2Pb2O3. Bei höherer Temperatur (510 bzw. 520°C) entstehen die bekannten Hochtemperaturformen.Der Madelunganteil der Gitterenergie, MAPLE, wird berechnet und diskutiert.Ebenso erhält man durch direkte Oxydation von KPb, RbPb, CsPb und CsSn die Oxide K2Pb2O3, Rb2Pb2O3, Cs2Pb2O3 und Cs2Sn2O3. Durch Oxydation von KGe wurde bei 400°C erstmals K2Ge2O3 (kubisch a = 8,339(1) Å; isotyp mit K2Pb2O3) neben K6Ge2O7 erhalten.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845090215
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  • 6
    Electronic Resource
    Electronic Resource
    Neues über Oxogermanate. 1. Zur Kenntnis von K4GeO4 (1983)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 505 (1983), S. 105-110 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: News on Oxogermanates. 1. On K4GeO4For the first time single crystals of K4GeO4 have been prepared by heating KO0.46 and GeO2. The structure has been refined. K4GeO4: 2565 I0(hkl), four circle diffractometer PW 1100, ω-scan, AgKα, R = 0.0826, Rw = 0.0837, P1; a = 640.56(35), b = 633.87(34), c = 933.68(45) pm; α = 80.26(5)°, β = 107.58(5)°, γ = 113.63(4)°; dx = 2.94 g/cm3; dpyk = 2.91 g/cm3; Z = 2. K4GeO4 is isotypic with K4SnO4. There is, however, an essential difference of the C.P. (Coordination Polyhedra) with respect to K4 and O4. The Effective Coordination Numbers, ECoN, the Mean Fictive Ionic Radii, MEFIR, and the Madelung Part of Lattic Energy, MAPLE, are calculated.
    Notes: Erstmals wurden farblose Einkristalle von K4GeO4 aus KO0,46 und GeO2 (K:Ge = 6:1; Ag-Bömbchen; 600°C, 28 d) erhalten und die Struktur bestimmt. K4GeO4: 2565 I0 (hkl), Vierkreisdiffraktometer PW 1100, ω-scan, AgKα, R = 0,0826, Rw = 0,0837, P1; a = 640,56(35), b = 633,87(34), c = 933,68(45) pm; α = 80,26(5)°, β = 107,58(5)°, γ = 113,63(4)°; drö = 2,94 g/cm3; dpyk = 2,91 g/cm3; Z = 2. K4GeO4 ist mit K4SnO4 isotyp. Jedoch besteht ein entscheidender Unterschied der C.P. (Koordinationspolyeder) um K4 und O4 (vgl. hierzu auch die vorangehende und die nachstehende Arbeit). Die Effektiven Koordinationszahlen, ECoN, die Mittleren Fiktiven Ionenradien, MEFIR, und der Madelunganteil der Gitterenergie, MAPLE, werden berechnet.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19835051012
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  • 7
    Electronic Resource
    Electronic Resource
    K4PbO4 und K4GeO4 - ein Vergleich (1983)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 505 (1983), S. 111-120 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: K4PbO4 and K4GeO4  -  a ComparisonThe question is: In which case are two compounds isotypic? The structures of K4PbO4 and K4GeO4 are derived using „Schlegelprojektionen“ (reduced atomic distances and angles) and „Erweiterte Schlegeldiagramme“ of the anions: O1, O2, O3 and O4. The difference is pointed out and discussed. For both compounds the interatomic distances are listed.
    Notes: Es stellt sich die Frage: Wann sind zwei Stoffe isotyp? Die Strukturen von K4PbO4 und K4GeO4 werden anhand von „Schlegelprojektionen“ (Reduzierte Abstände und Winkel) und „Erweiterten Schlegeldiagrammen“ der Koordinationspolyeder um die Anionen: O1, O2, O3 und O4 abgeleitet, der Unterschied herausgearbeitet und diskutiert. Für beide Verbindungen werden die interatomaren Abstände aufgeführt.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19835051013
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  • 8
    Electronic Resource
    Electronic Resource
    Über Oxostannate(II). V. Na4[SnO3] - das erste Oxostannat(II) mit „Inselstruktur“ (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 515 (1984), S. 114-126 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Oxostannates(II). V. Na4[SnO3] - The First Oxostannate (II) with Island StructureThe new oxid Na4SnO3 (yellow, transparant single crystals) has been prepared by heating of mixtures of: 1. NaO0.45 and SnO (Na:Sn2+ = 4.1:1; Ag-cylinders; 600-730°C, 7-66 d); 2. NaO0.45′ SnO2 and Sn±0 (Na:Sn4+:Sn±0 = 8.2:1:1; Ag-cylinders; 650-680°C, 2-66 d); 3. NaO0.45′ Na2SnO3 and Sn±0 (Na:Na2SnO3:Sn±0 = 6.1:1:1; Ag-cylinders; 650-670°C, 5 d). Na4SnO3:804 I0(hkl); four circle diffractometer PW 1100; ω-scan; MoKα; R = 5.14%; Rw = 4.64%; monoclin, Cc—Cs4; a = 582.77(11), b = 1667.44(24), c = 589.42(10) pm, β = 110.187(13)°; dx = 3.20 g/cm3; dpyk = 3.19 g/cm3; Z = 4; parameter look for text. It is a NaCl-variant with systemathical blanks of the anion part and “isolated” groups of [SnO3]. \documentclass{article}\pagestyle{empty}\begin{document}$ {\rm N}\mathop {\rm a}\limits^{\rm 1} $\end{document} has the uncommon coordination number 2. The Effective Coordination Numbers, ECoN, the Mean Fictive Ionic Radii, MEFIR, and the Madelung Part of Lattice Energy, MAPLE, are calculated. The structure is described using „Erweiterte Schlegeldiagramme“.
    Notes: Das neue Oxid Na4SnO3 (hellgelbe, klare Einkristalle) aus: 1. NaO0,45 und SnO (Na:Sn2+ = 4,1:1; Ag-Bömbchen; 600 bis 730°C, 7 bis 66 d); 2. NaO0,45, SnO2 und Sn±0(Na:Sn4+: Sn±0 = 8,2:1:1; Ag-Bömbchen; 650 bis 680°C, 2 bis 66 d); 3. NaO0,45, Na2SnO3 und Sn±0 (Na: Na2SnO3: Sn±0 = 6,1:1:1; Ag-Bömbchen; 650 bis 670°C, 5 d) kristallisiert monoklin, Cc—Cs4; a = 582,77(11), b = 1667,44(24), c = 589,42(10) pm, β = 110,187(13)°; dx = 3,20 g/cm3; dpyk = 3,19 g/cm3; Z = 4; 804 I0(hkl); Vierkreisdiffraktometer PW 1100; ω-scan; MoKα; R = 5,14%; Rw = 4,64%; Parameter siehe Text. Es liegt eine NaCl-Variante mit systematischen Lücken im Anionenteil und „isolierte“ Baugruppen [SnO3] vor. \documentclass{article}\pagestyle{empty}\begin{document}$ {\rm N}\mathop {\rm a}\limits^{\rm 1} $\end{document} besitzt die ungewöhnliche Koordinationszahl 2. Die Effektiven Koodinationszahlen, ECoN, die Mittleren Fiktiven Ionenradien, MEFIR, und der Madelunganteil der Gitterenergie, MAPLE, werden berechnet, die Struktur über „Erweiterte Schlegeldiagramme“ beschrieben.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845150813
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