Materials Data on SmClO2 by Materials Project
SmO2Cl crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Sm is bonded in a 9-coordinate geometry to six O and three equivalent Cl atoms. There are a spread of Sm–O bond distances ranging from 2.27–2.72 Å. There are two shorter (2.89 Å) and one longer (2.93 Å) Sm–Cl bond lengths. There are two inequivalent O sites. In the first O site, O is bonded in a 1-coordinate geometry to three equivalent Sm and two equivalent O atoms. Both O–O bond lengths are 1.90 Å. In the second O site, O is bonded in a trigonal non-coplanar geometry to three equivalent Sm atoms. Cl is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sm atoms.
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