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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on EuI2 by Materials Project

EuI2 is Baddeleyite structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Eu2+ is bonded to seven I1- atoms to form a mixture of distorted edge and corner-sharing EuI7 pentagonal bipyramids. There are a spread of Eu–I bond distances ranging from 3.28–3.45 Å. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted T-shaped geometry to three equivalent Eu2+ atoms. In the second I1- site, I1- is bonded to four equivalent Eu2+ atoms to form a mixture of distorted edge and corner-sharing IEu4 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuI2 by Materials Project

EuI2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Eu2+ is bonded to seven I1- atoms to form a mixture of distorted edge and corner-sharing EuI7 pentagonal bipyramids. There are a spread of Eu–I bond distances ranging from 3.28–3.45 Å. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted trigonal planar geometry to three equivalent Eu2+ atoms. In the second I1- site, I1- is bonded to four equivalent Eu2+ atoms to form a mixture of distorted edge and corner-sharing IEu4 trigonal pyramids.

36 MATERIALS SCIENCE↗