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DOE OSTI2020

Materials Data on EuCl2 by Materials Project

EuCl2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Eu2+ is bonded in a 9-coordinate geometry to nine Cl1- atoms. There are a spread of Eu–Cl bond distances ranging from 2.95–3.56 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded to four equivalent Eu2+ atoms to form a mixture of edge and corner-sharing ClEu4 tetrahedra. In the second Cl1- site, Cl1- is bonded in a 3-coordinate geometry to five equivalent Eu2+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on EuCl2 by Materials Project

EuCl2 is Rutile structured and crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Eu2+ is bonded to six equivalent Cl1- atoms to form a mixture of edge and corner-sharing EuCl6 octahedra. The corner-sharing octahedral tilt angles are 50°. All Eu–Cl bond lengths are 2.89 Å. Cl1- is bonded in a distorted trigonal planar geometry to three equivalent Eu2+ atoms.

36 MATERIALS SCIENCE↗