Synthesis, spectroscopic studies and crystal structure analysis of 1:1 lutetium/indium trihydroxide

Add time:08/06/2019    Source:sciencedirect.com

The crystal structure of 1:1 lutetium/indium trihydroxide has been determined by means of single- crystal X-ray diffraction techniques. The compound is isostructural with pure Lu(OH)3 having a polyhedral framework consisting of two slightly distorted pentagonal dodecahedra and twelve heptahedra per cell in a body-centered cubic (bcc) system. The cubic form crystallizes in space group Im3(Th5, No. 204) with a = 8.0440(8) Å obtained from a powder X-ray diffraction study, F20 = 71 (0.009, 30) and M20 = 132.3. A full-matrix least-squares refinement of the structure yielded R = 0.0173 and Rw = 0.0205. The Lu and In atoms share the same site, with a 50% occupancy for each ion. Six oxygen atoms are octahedrally coordinated about the metal (M) atoms. Thermal gravimetric and X-ray fluorescence analyses have been carried out. The important bond lengths are: MO = 2.194 Å; OO (intermolecular) = 2.725 and 2.837 Å.

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