Materials Data on Pr3Ir by Materials Project
Pr3Ir is Cementite structured and crystallizes in the orthorhombic Pnma space group. The structure is two-dimensional and consists of two Pr3Ir sheets oriented in the (0, 0, 1) direction. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 2-coordinate geometry to two equivalent Ir atoms. There are one shorter (2.93 Å) and one longer (2.97 Å) Pr–Ir bond lengths. In the second Pr site, Pr is bonded in a distorted bent 150 degrees geometry to two equivalent Ir atoms. There are one shorter (2.92 Å) and one longer (3.01 Å) Pr–Ir bond lengths. Ir is bonded in a 6-coordinate geometry to six Pr atoms.
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