The crystal structure of Tm5Re2O12.
The crystal structure of Tm(5)Re(2)O(12), pentathulium dirhenium dodecaoxide, was determined by synchrotron diffraction on a reticular merohedral twin, revealing space group C2/m with a = 12.3717 (7), b = 5.6744 (3), c = 7.4805 (4) Å, beta = 107.816 (2) degrees and Z = 2. Distorted ReO(6) octahedra form chains with alternating rhenium-rhenium distances of 2.455 (1) and 3.219 (1) Å. Early reports on Ln(2)ReO(5) compounds are critically reviewed in the light of our results for Tm(5)Re(2)O(12).
Fachgebiet Strukturforschung, Fachbereich Materialwissenschaft, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany. helmut@steno.st.mw.tu-darmstadt.de
H
Ehrenberg
T
Hartmann
G
Wltschek
H
Fuess
W
Morgenroth
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Krane