Materials Data on La2FeAs2O by Materials Project
La2FeAs2O crystallizes in the tetragonal P4/mmm space group. The structure is one-dimensional and consists of one La2FeAs2O ribbon oriented in the (0, 0, 1) direction. La3+ is bonded in a distorted linear geometry to one As3- and one O2- atom. The La–As bond length is 3.06 Å. The La–O bond length is 2.11 Å. Fe2+ is bonded in a linear geometry to two equivalent As3- atoms. Both Fe–As bond lengths are 2.37 Å. As3- is bonded in a linear geometry to one La3+ and one Fe2+ atom. O2- is bonded in a linear geometry to two equivalent La3+ atoms.
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