Journal article

Publication year: 1993

Pages: 149-157

Journal: Journal of Inorganic and General Chemistry

Volume number: 619

Issue number: 1

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.19936190125

Publisher: Wiley

Abstract: 

By heating of well ground mixtures of the binary oxides [K2O, Li2O, Nb2O5, K: Li: Nb = 1.1 : 4.4 : 1, Pt-tube, 1 100-degrees-C, 3d] colourless, triclinic single crystals of KLi4NbO5 have been prepared for the first time: space group P1BAR (Nr. 2) with a = 816.9(2) pm, b = 592.2(2) pm, c = 589.7(2) pm, alpha = 121.00(2)-degrees, beta = 91.78(2)-degrees, gamma = 99.23(2)-degrees, Z = 2.

The crystal structure was solved by four-cycle diffractometer data [Mo-KalphaBAR, 1386 from 1386 I(o)(hkl), R = 3.4%, R(w) = 2.6%], parameters see text.

Characteristic for this structure are ''isolated'' groups of [Nb2O10] and the tetrahedral coordination of Li(1), Li(2), and Li(3). Li(4) has a tetragonal-pyramidal coordination.

The structural relations are deduced by Schlegel Diagrams. The Madelung Part of Lattice Energy, MAPLE, the Effective Coordination Numbers, ECoN and the charge distribution have been calculated and discussed.

Harvard Citation style: WEHRUM, G. and HOPPE, R. (1993) THE 1ST DINIOBATE WITH ISOLATED ANIONS - KLI4[NBO5] = K2LI8[NB2O10] [1], Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 619(1), pp. 149-157. https://doi.org/10.1002/zaac.19936190125

APA Citation style: WEHRUM, G., & HOPPE, R. (1993). THE 1ST DINIOBATE WITH ISOLATED ANIONS - KLI4[NBO5] = K2LI8[NB2O10] [1]. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 619(1), 149-157. https://doi.org/10.1002/zaac.19936190125