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DOE OSTI2020

Materials Data on Eu4Cl6O by Materials Project

Eu4OCl6 crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. there are two inequivalent Eu2+ sites. In the first Eu2+ site, Eu2+ is bonded in a 1-coordinate geometry to one O2- and seven Cl1- atoms. The Eu–O bond length is 2.37 Å. There are a spread of Eu–Cl bond distances ranging from 2.95–3.30 Å. In the second Eu2+ site, Eu2+ is bonded in a 1-coordinate geometry to one O2- and six Cl1- atoms. The Eu–O bond length is 2.35 Å. There are three shorter (2.97 Å) and three longer (3.16 Å) Eu–Cl bond lengths. O2- is bonded in a tetrahedral geometry to four Eu2+ atoms. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 5-coordinate geometry to five Eu2+ atoms. In the second Cl1- site, Cl1- is bonded in a 4-coordinate geometry to four Eu2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuClO by Materials Project

EuOCl is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Eu3+ is bonded in a 9-coordinate geometry to four equivalent O2- and five equivalent Cl1- atoms. All Eu–O bond lengths are 2.34 Å. There are one shorter (3.11 Å) and four longer (3.15 Å) Eu–Cl bond lengths. O2- is bonded to four equivalent Eu3+ atoms to form a mixture of corner and edge-sharing OEu4 tetrahedra. Cl1- is bonded in a 5-coordinate geometry to five equivalent Eu3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu(ClO4)3 by Materials Project

Eu(ClO4)3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. Eu is bonded in a 9-coordinate geometry to nine O atoms. There are six shorter (2.55 Å) and three longer (2.62 Å) Eu–O bond lengths. There are three inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.43 Å. In the second O site, O is bonded in a distorted bent 150 degrees geometry to one Eu and one Cl atom. The O–Cl bond length is 1.46 Å. In the third O site, O is bonded in a bent 150 degrees geometry to one Eu and one Cl atom. The O–Cl bond length is 1.47 Å. Cl is bonded in a tetrahedral geometry to four O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuClO2 by Materials Project

EuO2Cl crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Eu is bonded in a 9-coordinate geometry to six O and three equivalent Cl atoms. There are a spread of Eu–O bond distances ranging from 2.34–2.45 Å. All Eu–Cl bond lengths are 3.00 Å. There are two inequivalent O sites. In the first O site, O is bonded in a trigonal non-coplanar geometry to three equivalent Eu atoms. In the second O site, O is bonded in a trigonal non-coplanar geometry to three equivalent Eu atoms. Cl is bonded in a trigonal non-coplanar geometry to three equivalent Eu atoms.

36 MATERIALS SCIENCE↗