Journal article

Publication year: 1993

Pages: 1315-1320

Journal: Journal of Inorganic and General Chemistry

Volume number: 619

Issue number: 7

ISSN: 0044-2313

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

Publisher: 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 Citation style: 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 Citation style: 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