Materials Data on Pr2FeAs2O by Materials Project
Pr2FeAs2O crystallizes in the tetragonal P4/mmm space group. The structure is one-dimensional and consists of one Pr2FeAs2O ribbon oriented in the (0, 0, 1) direction. Pr3+ is bonded in a distorted single-bond geometry to one As3- and one O2- atom. The Pr–As bond length is 3.12 Å. The Pr–O bond length is 2.13 Å. Fe2+ is bonded in a linear geometry to two equivalent As3- atoms. Both Fe–As bond lengths are 2.47 Å. As3- is bonded in a linear geometry to one Pr3+ and one Fe2+ atom. O2- is bonded in a linear geometry to two equivalent Pr3+ atoms.
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