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DOE OSTI · 1689207

Materials Data on Sr(IO)2 by Materials Project

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Abstract

Sr(OI)2 crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of two Sr(OI)2 ribbons oriented in the (1, 0, 0) direction. Sr is bonded in a 5-coordinate geometry to four O and one I atom. There are two shorter (2.48 Å) and two longer (2.53 Å) Sr–O bond lengths. The Sr–I bond length is 3.49 Å. There are two inequivalent O sites. In the first O site, O is bonded in a trigonal planar geometry to two equivalent Sr and one I atom. The O–I bond length is 1.97 Å. In the second O site, O is bonded in a trigonal non-coplanar geometry to two equivalent Sr and one I atom. The O–I bond length is 1.98 Å. There are two inequivalent I sites. In the first I site, I is bonded in a single-bond geometry to one O atom. In the second I site, I is bonded in a distorted bent 120 degrees geometry to one Sr and one O atom.

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36 MATERIALS SCIENCEcrystal structureI-O-SrSr(IO)2

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2019-01-11. Materials Data on Sr(IO)2 by Materials Project. https://doi.org/10.17188/1689207

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