Materials Data on SmBi2IO4 by Materials Project
SmBi2O4I is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Sm3+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Sm–O bond lengths are 2.46 Å. Bi3+ is bonded in a 4-coordinate geometry to four equivalent O2- and four equivalent I1- atoms. All Bi–O bond lengths are 2.27 Å. All Bi–I bond lengths are 3.67 Å. O2- is bonded to two equivalent Sm3+ and two equivalent Bi3+ atoms to form a mixture of corner and edge-sharing OSm2Bi2 tetrahedra. I1- is bonded in a distorted body-centered cubic geometry to eight equivalent Bi3+ atoms.
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