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  • 1
    Electronic Resource
    Electronic Resource
    Alkalioxoargentate(I). Über Na3AgO2 (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 485 (1982), S. 92-100 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oxoargentates(I) of Alkali Metals. On Na3AgO2Na3AgO2 has been prepared anew (light pale-yellow powder samples; clear transparent single crystals). It crystallizes orthorhombic (space group Ibam) with a = 5.463, b = 10.926, c = 5.926 Å, Z = 4, drö = 3.94 g X cm-3, dpyk = 3.89 g X cm-3; parameters are given in the text. The structure of Na3AgO2, marked by linear “dumb-bells” [O—Ag—O], d(Ag→O) = 2.09 Å is a novel variant of Na2O. The Madelung Part of Lattice Energy, MAPLE, and Effective Coordination Numbers, ECoN, have been calculated and are discussed.
    Notes: Erneut dargestelltes Na3AgO2 (hell blaß-gelbes Pulver, glasklare Einkristalle), orthorhombisch, Raumgruppe Ibam mit a = 5,463 Å, b = 10,926 Å, c = 5,926 Å, Z = 4, drö = 3,94 g · cm-3, dpyk = 3,89 g · cm-3, Lageparameter siehe Text, ist strukturell durch lineare „Hanteln“ [O—Ag=O], d(Ag→O) = 2,095 Å ausgezeichnet. Es liegt eine neuartige Na2O-Variante vor.Der Madelung-Anteil der Gitterenergie, MAPLE, und Effektive Koordinationszahlen, ECoN, werden berechnet und diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824850109
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  • 2
    Electronic Resource
    Electronic Resource
    Neue Oxocuprate(I). Zur Kenntnis von Rb3Cu5O4 [1] (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 494 (1982), S. 20-30 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Oxocuprates(I). On Rb3Cu5O4New obtained is Rb3Cu5O4, powder as well as transparent single crystals greenish yellow. The monoclinic structur [P21/c, a = 9.886(1), b = 7.508(1), c = 14.401(2) Å, β = 106.85(7)°, Z = 4, four-circle diffractometer data, R = 10.6% for 1 453 hkl, MoKα] is characterized by spiralic chains —O—Cu—O—Cu— parallel to [100], which are tied together by additional Cu+. Motifs of mutual adjunction, Effective Coordination Numbers, ECoN, and the Madelung Part of Lattice Energy, MAPLE, are calculated and discussed.
    Notes: Neu dargestellt wurde Rb3Cu5O4, Pulver und transparente Einkristalle grüngelb. Die monokline Struktur [P21/c, a = 9,886(1), b = 7,508(1), c = 14,401(2) Å, β = 106,85(7)°, Z = 4, Vierkreisdiffraktometerdaten, R = 10,6% für 1 453 hkl, MoKα] ist charakterisiert durch Spiralketten —O—Cu—O—Cu—, die längs [100] verlaufen und über weitere Cu+ verknüpft sind. Die Motive der gegenseitigen Zuordnung, Effektive Koordinationszahlen, ECoN, sowie der Madelunganteil der Gitterenergie MAPLE, werden berechnet und diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824940103
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  • 3
    Electronic Resource
    Electronic Resource
    Neue Oxocuprate(I): Zur Kenntnis von CsCuOProfessor Harald Schäfer zum 70. Geburtstage am 10. Februar 1983 gewidmet (1983)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 497 (1983), S. 70-78 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Oxocuprates(I): On CsCuONew obtained is CsCuO, powder as well as transparent single crystals yellow greenish. The orthorhombic structure (Ama2, a = 5.086(1), b = 10.238(2), c = 5.899(1) Å, Z = 4, four-circle-diffractometer data, R = 9.6% for 379 hkl, MoKα) is characterized by “zick-zack”-chains infin;1[CuO2/2] parallel to [100], which are not tied together by additional Cu+. Motifs of mutual adjunction, Effective Coordination Numbers, ECoN, and the Madelung Part of Lattice Energy, MAPLE, are calculated and discussed.
    Notes: Neu dargestellt wurde CsCuO, Pulver und transparente Einkristalle gelbgrün. Die orthorhombische Struktur (Ama2, a = 5,086(1), b = 10,238(2), c = 5,899(1) Å, Z = 4, Vierkreisdiffraktometerdaten, R = 9,6% für 379 hkl, MoKα) ist charakterisiert durch Zick-Zack-Ketten infin;1[CuO2/2] entlang [100], die nicht durch weitere Cu+ verknüpft sind.Die Motive der gegenseitigen Zuordnung, Effektive Koordinationszahlen, ECoN, sowie der Madelung-Anteil der Gitterenergie, MAPLE, werden berechnet und diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19834970207
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  • 4
    Electronic Resource
    Electronic Resource
    Die K4[Ag4O4]  -  Strukturfamilie (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 485 (1982), S. 101-114 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: K4[Ag404] Structure TypeM4[Ag4O4] (M = Li—Cs) and M4[Cu4O4] (M = Li—Rb) have been prepared anew; as an example the crystal structure of K4[Ag4O4] has been revised.Contrary to our first report [2, 3] it crystallizes in the space-group I4m2 with the “ring” [Ag4O4]4- which is not plane, however. Each two O2- (trans-arrangement) are rather (0.02 Å) above and below the plane of the “ring”, respectively. The new parameters are given in the text. The distances, for example d(Ag+·O2-) = 2.058 Å and the Madelung Part of Lattice Energy, MAPLE, are both in a very good agreement with the measurements and calculations, respectively, which have been done on other ternary oxides with silver.
    Notes: Die Verbindungen M4[Ag4O4] mit M = Li—Cs und M4[Cu4O4] mit M = Li—Rb wurden erneut dargestellt; die Kristallstruktur wurde am K4[Ag4O4] überprüft.Entgegen unserem ersten Befund [2, 3] (I4) liegt in I4m2 zwar die Gruppe [Ag4O4]4- vor, doch sind je zwei O2- (trans-Stellung) etwas (0,02 Å) oberhalb bzw. unterhalb der “Ringebene” ausgelenkt. Bezüglich der neuen Parameter siehe Text. Die Abstände, z. B. d(Ag+→O2-) = 2,058 Å, sowie der Madelung-Anteil der Gitterenergie, MAPLE, stimmen mit Messungen bzw. Berechnungen an anderen ternären Oxiden mit Silber sehr gut überein.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824850110
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