Journal article

Publication year: 1992

Pages: 63-73

Journal: Journal of Inorganic and General Chemistry

Volume number: 618

Issue number: 12

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.19926180112

Publisher: Wiley

Abstract: 
Rb6[Fe2O5] and K6[Fe2O5] were obtained for the first time by annealing intimate mixtures of ''Rb6CdO4'' with CdO (molar ratio 1 : 1.1) and KO0.48 with CdO (molar ratio 5.9 : 1) respectively in closed Fe-cylinders. Determination and refinement of the crystal-structure confirms the space group C2/m (four-circle-diffractometer data). Rb6[Fe2O5]: Ag KalphaBAR, 720 out of 1220 I(o)(hkl), R = 9.68%, R(w) = 6.09%; a = 718.9 pm, b = 1183.1 pm, c = 695.4 pm, beta = 95.05-degrees, Z = 2; K6[Fe2O5]: Mo KalphaBAR, 1214 out of 1214 I(o)(hkl), R = 3.20%, R(w) = 2.48%, a = 691.21 pm, b = 1142.7 8 pm, c = 665.50 pm, beta = 93.82-degrees, Z = 2. The binuclear unit [O2FeOFeO2]6-already known to be planar with oxoferrates(II) now was observed to be angular here and closely related to Na6[Be2O5].

Harvard Citation style: BERNHARDT, F. and HOPPE, R. (1992) NEW OXIDES WITH THE BUTTERFLY-MOTIVE - RB6[FE2O5] AND K6[FE2O5], Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 618(12), pp. 63-73. https://doi.org/10.1002/zaac.19926180112

APA Citation style: BERNHARDT, F., & HOPPE, R. (1992). NEW OXIDES WITH THE BUTTERFLY-MOTIVE - RB6[FE2O5] AND K6[FE2O5]. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 618(12), 63-73. https://doi.org/10.1002/zaac.19926180112