Materials Data on PmMn3 by Materials Project
PmMn3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pm is bonded to twelve equivalent Mn atoms to form a mixture of face and corner-sharing PmMn12 cuboctahedra. All Pm–Mn bond lengths are 3.04 Å. Mn is bonded in a 12-coordinate geometry to four equivalent Pm and six equivalent Mn atoms. There are two shorter (2.64 Å) and four longer (2.78 Å) Mn–Mn bond lengths.
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