cheminform abstract: structure, crystal chemistry and thermal evolution of the δ-bi2o3-related...
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StructureD 2000 Structure, Crystal Chemistry and Thermal Evolution of the δ-Bi2O3-Related
Phase Bi9ReO17. — The slow-cooled room temperature phase of Bi9ReO17 is charac-terized by neutron powder diffraction, powder synchrotron XRD, and electron diffrac-tion. It crystallizes in the monoclinic space group P21/c and features clusters of ReO4 tetrahedra embedded in a distorted Bi—O fluorite-like network. Above 725 °C, the compound transforms to a disordered δ-Bi2O3-like phase, which crystallizes in the cu-bic space group Fm3m. Quenching from above 725 °C leads to a different phase which seems to contain both ReO4 tetrahedra and ReO6 octahedra. — (SHARMA*, N.; WITHERS, R. L.; KNIGHT, K. S.; LING, C. D.; J. Solid State Chem. 182 (2009) 9, 2468-2474; Sch. Chem., Univ. N. S. W., Sydney, N. S. W. 2006, Australia; Eng.) — W. Pewestorf
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ChemInform 2009, 40, issue 49 © 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim