Materials Data on Eu(CrAs)2 by Materials Project
Eu(CrAs)2 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Eu2+ is bonded in a body-centered cubic geometry to eight equivalent As3- atoms. All Eu–As bond lengths are 3.27 Å. Cr2+ is bonded to four equivalent As3- atoms to form a mixture of corner and edge-sharing CrAs4 tetrahedra. All Cr–As bond lengths are 2.44 Å. As3- is bonded in a 4-coordinate geometry to four equivalent Eu2+ and four equivalent Cr2+ atoms.
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