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Crystal structure of the solid solution (Sr1.65Pb0.35)Al6O11.

ABSTRACT: The title compound, di(strontium/lead) hexa-aluminate, is a member of the solid solution series (Sr2-x Pb x )Al6O11. It contains two statistically occupied M (2+) (M = Sr, Pb) sites [both with site symmetries ..m; Sr:Pb occupancy ratios = 0.756?(2):0.244?(2) and 0.8968?(19):0.1032?(19)] that are located in the voids of an aluminate framework. The M (2+) sites are surrounded by six and seven O atoms, respectively, if a cut-off M-O distance of 3?Å is chosen, resulting in considerably distorted MO x polyhedra. The aluminate framework consists of three AlO6 octa-hedra (two with point-group symmetries ..2/m and one with ..2) sharing edges to form partially filled layers extending parallel to (100) and located at x = 0, 0.5. Adjacent AlO6 layers are linked by a network made up from two crystallographically different AlO4 tetra-hedra by sharing corners.

SUBMITTER: Weil M

PROVIDER: S-EPMC4186198 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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Crystal structure of the solid solution (Sr1.65Pb0.35)Al6O11.

Weil Matthias M

Acta crystallographica. Section E, Structure reports online 20140801 Pt 9

The title compound, di(strontium/lead) hexa-aluminate, is a member of the solid solution series (Sr2-x Pb x )Al6O11. It contains two statistically occupied M (2+) (M = Sr, Pb) sites [both with site symmetries ..m; Sr:Pb occupancy ratios = 0.756 (2):0.244 (2) and 0.8968 (19):0.1032 (19)] that are located in the voids of an aluminate framework. The M (2+) sites are surrounded by six and seven O atoms, respectively, if a cut-off M-O distance of 3 Å is chosen, resulting in considerably distorted MO ...[more]

PMID: 25309169

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