Journal article

Publication year: 1993

Pages: 337-342

Journal: Journal of Inorganic and General Chemistry

Volume number: 619

Issue number: 2

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.19936190218

Publisher: Wiley

Abstract: 

For the first time hitherto unknown KLi6[TaO6] was obtained by intimately pulverized mixtures of K2O, Li2O and Ta2O5 (molar ratio K : Li : Ta = 1.1 : 6.6 : 1) in a closed Ni-cylinder (800-degrees-C, 30 d) in form of colourless single crystals; trigonal-rhomboedral (space group R3mBAR) with a = 822.6(1) pm, c = 721.2(1) pm (Guinier-Simon-powder data), Z = 3. The determination of the crystal structure (four cycle diffractometer data, 224 out of 224 I0 (hkl), R = 1.80%, R(w) = 1.79%, absorption not considered) proves that KLi6[TaO6] is isotypic with KLi6[IrO6], a stuffed derivative of the alpha-Li6[UO6] structure type.

The Madelung Part of Lattice Energy, MAPLE, and Effective Coordination Numbers, ECoN, the latter derived from Mean Effective Ionic Radii, MEFIR, as well as the Charge Distribution, CHARDI, are calculated and discussed.

Harvard Citation style: SCHELD, W., WEHRUM, G. and HOPPE, R. (1993) A NEW OXOTANTALATE(V) - ON KLI6[TAO6] .1., Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 619(2), pp. 337-342. https://doi.org/10.1002/zaac.19936190218

APA Citation style: SCHELD, W., WEHRUM, G., & HOPPE, R. (1993). A NEW OXOTANTALATE(V) - ON KLI6[TAO6] .1.. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 619(2), 337-342. https://doi.org/10.1002/zaac.19936190218