Journal article

Publication year: 1995

Pages: 1447-1453

Journal: Journal of Inorganic and General Chemistry

Volume number: 621

Issue number: 9

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.19956210902

Publisher: Wiley

Abstract: 

The new oxides CsNaTiO3 (I) and RbNaTiO3 (II) are obtained by heating well grounded mixtures of the binary oxides in Ni-tubes as colourless platelike crystals. I: CsO0.56, NaO0.48 and TiO2, Cs:Na:Ti = 1.1:1.1:1.0; 600 degrees C, 61 d as well as CSO0.97, NaO0.48 and Ti2O3, Cs:Na:Ti = 1.5:3.0:1.0; 760 degrees C, 27 d. II: RbO0.52, NaO0.48 and TiO2, Rb:Na:Ti = 1.1:1.1:1.0; 750 degrees C, 14 d as well as RbO0.98, NaO0.48 and Ti2O3. Rb:Na:Ti = 1.5:3.1:1.0; 760 degrees C, 27 d. CsNaTiO3 (orthorhombic, Cmcm) is nearly isostructural with KNaTiO3 [2]; a = 601.4(1) pm, b = 1120.3(1)pm, c = 563.4(1) pm (Guinier-Simon-Data, Z = 4). RbNaTiO3 (monoclinic, C2/c) is isostructural with KNaTiO3; a = 590.3(1) pm, b = 1098.4(1)pm, c = 555.1(0) pm, beta = 92.15 degrees (Guinier-Simon-Data, Z = 4). Both structures are determined by using four-circle diffractometer data (CsNaTiO3: Siemens AED2, 2896I(o),(hkl), MoK alpha, R = 2.4%, R(v) = 2.3%; RbNaTiO3: Philips PW 1100, 2743I(o)(hkl), AgK alpha, R = 9.9%, R(w) = 8.9%; additional data see text).

The Madelung Part of Lattice Energy (MAPLE), Effective Coordination Numbers (ECoN), Mean Fictive Ionic Radii (ME-FIR) and the Charge Distribution in Solids are calculated and discussed.

Harvard Citation style: WEISS, C. and HOPPE, R. (1995) 2 NEW METATITANATES WITH 5-COORDINATED TITANIUM - CSNATIO3, AND RBNATIO3, Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 621(9), pp. 1447-1453. https://doi.org/10.1002/zaac.19956210902

APA Citation style: WEISS, C., & HOPPE, R. (1995). 2 NEW METATITANATES WITH 5-COORDINATED TITANIUM - CSNATIO3, AND RBNATIO3. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 621(9), 1447-1453. https://doi.org/10.1002/zaac.19956210902