Library

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 573 (1989), S. 157-169 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Two New Variants of the NaCl Type of Structure: On Li4MoO5 and Li4WO5For the first time in form of colourless, transparent single crystals of Li4MoO5 [annealed mixtures of Li2O and MoO3, Li:Mo = 4.2:1, Ni-cylinder, 950°C, 28 d] as well as Li4WO5 [annealed mixtures of Li2O and WO3, Li:W = 4.4:1, Au-tube, 950°C, 28 d, slowly cooling] have been prepared. Single crystal data show isotypic oxides of the Li4TeO5-type, a deformed variant of the NaCl-type of structure [Li4MoO5: 1379 IO(hkl), four-circle-diffraktometer Philips PW 1100, ω--2Θ scan, AgKα, R = 8.7% and RW = 8.3%, space group P1 with a = 511.9(1), b = 772.7(2), c = 506.4(1) pm, α = 101.70(1)°, β = 101.48(1)°, γ = 108.58(2)°, Z = 2 and Li4WO5: 1027 IO(hkl), Philips PW 1100, ω-2Θ scan, MoKα, R = 4.0% und RW = 3.7%, space group P1 with a = 510.94(5), b = 771.59(7), c = 506.09(4) pm, α = 101.804(8)°, β = 101.78(1)°, γ = 108.770(9)°, Z = 2]. The structural relations are deduced from Schlegel Diagrams. The Madelung Part of Lattice Energie, MAPLE, and Effective Coordination Numbers, ECON, these via Mean Fictive Ionic Radii, MEFIR, are calculated and discussed.
    Notes: Erstmals wurde in Form farbloser, transparenter Einkristalle Li4MoO5 [aus Gemengen von Li2O und MoO3. Li:Mo = 4,2:1, Ni-Bömbchen, 950°C, 28 d] sowie Li4WO5 [aus Gemengen von Li2O und WO3, Li:W = 4,4:1, Au-Rohr, 900°C, 30 d] dargestellt. Nach Einkristalldaten liegt bei den isotypen Oxiden vom Li4TeO5-Typ eine Ordnungsvariante des NaCl-Typs [Li4MoO5: 1379 IO(hkl), Vierkreisdiffraktometer Philips PW 1100, ω-2Θ scan, AgKα, R = 8,7% und RW = 8,3%, Raumgruppe P1 mit a = 511,9(1), b = 772,7(2), c = 506,4(1) pm, α = 101,70(1)°, β = 101,48(1)°, γ = 108,58(2)°, Z = 2 bzw. Li4WO5: 1027 IO(hkl), Philips PW 1100, ω-2Θ scan, MoKα, R = 4,0% und RW = 3,7%, Raumgruppe P1 mit a = 510,94(5), b = 771,59(7), c = 506,09(4) pm, α = 101,804(8)°, β = 101,78(1)°, γ = 108,770(9)°, Z = 2] vor.Die strukturellen Zusammenhänge werden aus den Schlegel-Diagrammen abgeleitet. Der Madelunganteil der Gitterenergie, MAPLE, sowie Effektive Koordinationszahlen, ECON, diese über Mittlere Fiktive Ionenradien, MEFIR, berechnet, werden mitgeteilt und diskutiert.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...