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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Pr5NiPb3 by Materials Project

Pr5NiPb3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 7-coordinate geometry to two equivalent Ni and five equivalent Pb atoms. Both Pr–Ni bond lengths are 2.84 Å. There are a spread of Pr–Pb bond distances ranging from 3.30–3.81 Å. In the second Pr site, Pr is bonded in a 6-coordinate geometry to six equivalent Pb atoms. All Pr–Pb bond lengths are 3.36 Å. Ni is bonded to six equivalent Pr atoms to form face-sharing NiPr6 octahedra. Pb is bonded in a 9-coordinate geometry to nine Pr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr12Ni6Pb by Materials Project

Pr12Ni6Pb crystallizes in the cubic Im-3 space group. The structure is three-dimensional. Pr is bonded in a 3-coordinate geometry to four equivalent Ni and one Pb atom. There are a spread of Pr–Ni bond distances ranging from 2.78–3.76 Å. The Pr–Pb bond length is 3.71 Å. Ni is bonded in a 2-coordinate geometry to eight equivalent Pr and one Ni atom. The Ni–Ni bond length is 2.40 Å. Pb is bonded in a cuboctahedral geometry to twelve equivalent Pr atoms.

36 MATERIALS SCIENCE↗