Journalartikel

Jahr der Veröffentlichung: 1993

Seiten: 1315-1320

Zeitschrift: Journal of Inorganic and General Chemistry

Bandnummer: 619

Heftnummer: 7

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.19936190727

Verlag: Wiley

Abstract: 

By solving of recently precipitated Ta2O5 . aq in a 1.5-molar solution of KOH in 3% H2O2 and subsequently cooling at 0-degrees-C we obtained colourless single-crystals of K3[Ta(O2)4].

The compound crystallizes tetragonal (spacegroup I42mBAR) with a = 679.5(1) pm, c = 791.2(1) pm, Z = 2 (Guinier-de-Wolff powder data). The determinated crystal structure (four-circle diffractometer, 444 out of 444 I0(hkl); R = 1.51%, R(W) = 1.48%, parameters see text) proves that K3[Ta(O2)4] is isotypic with K3[Cr(O2)4] [2].

The Madelung Part of Lattice Energy, MAPLE, and Effective Coordination Numbers, ECoN, these calculated via Mean Fictive Ionic Radii. as well as charge distribution (CHARDI) are calculated and discussed.

Harvard-Zitierstil: WEHRUM, G. and HOPPE, R. (1993) ON THE CONSTITUTION OF PEROXOTANTALATES(V) WITH ALKALI-METALS - ON THE STRUCTURE OF K3[TA(O2)4] [1], Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 619(7), pp. 1315-1320. https://doi.org/10.1002/zaac.19936190727

APA-Zitierstil: WEHRUM, G., & HOPPE, R. (1993). ON THE CONSTITUTION OF PEROXOTANTALATES(V) WITH ALKALI-METALS - ON THE STRUCTURE OF K3[TA(O2)4] [1]. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 619(7), 1315-1320. https://doi.org/10.1002/zaac.19936190727