ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
The First Nesogallate with Different Counter-cations: Li3Na2[GaO4]We prepared hitherto unknown Li3Na2[GaO4] [Heating mixtures of Na8Ga2O7 and Li2O gives single crystals (Ag-cylinders, 700°C, 14 d), from binary oxides Li2O, Na2O and β-Ga2O3 the compound is obtained as powder (like above, 680°C, 7 d)]. The single crystals are colourless and transparent, the powders are white. A new type of structure is found. The single crystal data are: Pnnm, a = 8.260, b = 7.946, c = 6.515 Å, Z = 4, dx = 3.117, dpyk = 3.073 g · cm-3 [4-circle-diffractometer data, MoKα, 679 from 709 I0(hkl), R = 3.97% and RW = 3.88%, Parameter see text, anisotropic refinement]. The Madelung Part of Lattice Energy, MAPLE, is calculated and discussed.
Notes:
Neu dargestellt wurde Li3Na2[GaO4] [Tempern inniger Gemenge von Na8Ga2O7 mit Li2O liefert Einkristalle (Ag-Bömbchen, 700°C, 14 d), aus den binären Oxiden Li2O, Na2O und β-Ga2O3 erhält man entsprechende Pulverpräparate (wie oben, 680°C, 7 d)]. Die Einkristalle sind farblos und transparent, die Pulver weiß. Der neue Strukturtyp wird durch Einkristalldaten belegt: Pnnm; a = 8,260, b = 7,946, c = 6,515 Å; Z = 4; drö = 3,117, dpyk = 3,073 g · cm-3 [Vierkreisdiffraktometerdaten PW 1100, MoKα; 679 von 709 I0(hkl); R = 3,97% und RW = 3,88%; Parameter siehe Text; anisotrope Verfeinerung].Der Madelunganteil der Gitterenergie, MAPLE, wird berechnet und diskutiert.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19824950102
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