Materials Data on PrIO by Materials Project
IOPr crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one IOPr sheet oriented in the (0, 0, 1) direction. Pr3+ is bonded in a 4-coordinate geometry to four equivalent O2- and four equivalent I1- atoms. All Pr–O bond lengths are 2.38 Å. All Pr–I bond lengths are 3.49 Å. O2- is bonded to four equivalent Pr3+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. I1- is bonded in a 4-coordinate geometry to four equivalent Pr3+ atoms.
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