Materials Data on Pr3Si2 by Materials Project
Pr3Si2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a square co-planar geometry to four equivalent Si atoms. All Pr–Si bond lengths are 3.20 Å. In the second Pr site, Pr is bonded in a distorted hexagonal planar geometry to six equivalent Si atoms. There are four shorter (3.18 Å) and two longer (3.22 Å) Pr–Si bond lengths. Si is bonded in a 9-coordinate geometry to eight Pr and one Si atom. The Si–Si bond length is 2.44 Å.
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