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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on BeI2 by Materials Project

BeI2 crystallizes in the tetragonal I4_1/acd space group. The structure is three-dimensional and consists of two BeI2 frameworks. Be2+ is bonded to four I1- atoms to form corner-sharing BeI4 tetrahedra. There are a spread of Be–I bond distances ranging from 2.41–2.45 Å. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a bent 120 degrees geometry to two equivalent Be2+ atoms. In the second I1- site, I1- is bonded in a water-like geometry to two equivalent Be2+ atoms. In the third I1- site, I1- is bonded in a water-like geometry to two equivalent Be2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BeI2 by Materials Project

BeI2 is Silicon Disuphide structured and crystallizes in the orthorhombic Ibam space group. The structure is one-dimensional and consists of two BeI2 ribbons oriented in the (1, 0, 0) direction. Be2+ is bonded to four equivalent I1- atoms to form edge-sharing BeI4 tetrahedra. All Be–I bond lengths are 2.43 Å. I1- is bonded in a distorted L-shaped geometry to two equivalent Be2+ atoms.

36 MATERIALS SCIENCE↗