ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
On Perrhenates. 2. On Li5ReO6 and Na5ReO6 - with a Note on Na5IO6The crystal structures of Li5ReO6 and Na5ReO6 were determined for the first time in full detail from four-circle diffractometer data (AgKα radiation). They and Na5IO6, also (according to powder data) crystallize with the monoclinic system (C2/m, Z = 2). The structure may be described as a distorted derivative of the NaCl type; data see „Inhaltsübersicht“.Effective Coordination Numbers, ECoN, and the Madelung Parts of the Lattice Energy, MAPLE, have been calculated and are discussed.
Notes:
An Einkristallen von Li5ReO6 wurden die Kristallstrukturen erstmals vollständig mit Hilfe von Vierkreisdiffraktometerdaten (AgKα-Strahlung) bestimmt: monoklin, C2/m, Z = 2. Na5IO6 ist aufgrund von Pulverdaten isotyp mit Na5ReO6 und Li5ReO6. Es liegt eine verzerrte NaCl-Variante vor.Li5ReO6: a = 506,79(6), b = 873,15(8), c = 502,93(6) pm, β = 110,24(1)°, (437 hkl, R = 7,0%, Rw = 5,6%).Na5ReO6: a = 568,77(8), b = 973,14(13), c = 560,74(9) pm, β = 111,01(1)° (603 hkl, R = 4,1%, Rw = 3,9%).Na5IO6: a = 576,49(8), b = 978,77(8), c = 565,49(7) pm, β = 111,48(1)°.Effektive Koordinationszahlen, ECoN, sowie der Madelung-Anteil der Gitterenergie, MAPLE, werden berechnet und diskutiert.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19845120504
