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DOE OSTI · 1276111

Materials Data on Sr11Al4Sn3 by Materials Project

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Abstract

Sr11Al4Sn3 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are four inequivalent Sr sites. In the first Sr site, Sr is bonded in a 6-coordinate geometry to three equivalent Al and three equivalent Sn atoms. All Sr–Al bond lengths are 3.47 Å. All Sr–Sn bond lengths are 3.54 Å. In the second Sr site, Sr is bonded in a distorted square co-planar geometry to one Sr, two equivalent Al, and two equivalent Sn atoms. The Sr–Sr bond length is 4.13 Å. Both Sr–Al bond lengths are 3.46 Å. Both Sr–Sn bond lengths are 3.54 Å. In the third Sr site, Sr is bonded in a cuboctahedral geometry to twelve equivalent Sr atoms. In the fourth Sr site, Sr is bonded in a distorted octahedral geometry to six equivalent Sn atoms. All Sr–Sn bond lengths are 3.79 Å. Al is bonded in a 9-coordinate geometry to six Sr and three equivalent Al atoms. All Al–Al bond lengths are 2.73 Å. Sn is bonded in a 9-coordinate geometry to nine Sr atoms.

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36 MATERIALS SCIENCEAl-Sn-Srcrystal structureSr11Al4Sn3

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2020-04-29. Materials Data on Sr11Al4Sn3 by Materials Project. https://doi.org/10.17188/1276111

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