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DOE OSTI · 1722701

Materials Data on SmSiOs2C by Materials Project

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Abstract

SmOs2SiC crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sm3+ is bonded in a distorted rectangular see-saw-like geometry to four equivalent C4- atoms. All Sm–C bond lengths are 2.71 Å. Os+1.50- is bonded in a 1-coordinate geometry to three equivalent Si4+ and one C4- atom. All Os–Si bond lengths are 2.50 Å. The Os–C bond length is 1.89 Å. Si4+ is bonded in a 6-coordinate geometry to six equivalent Os+1.50- atoms. C4- is bonded to four equivalent Sm3+ and two equivalent Os+1.50- atoms to form a mixture of edge and corner-sharing CSm4Os2 octahedra. The corner-sharing octahedral tilt angles are 22°.

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36 MATERIALS SCIENCEC-Os-Si-Smcrystal structureSmSiOs2C

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2020-05-02. Materials Data on SmSiOs2C by Materials Project. https://doi.org/10.17188/1722701

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