Modeling and Simulation of Radioactive Nanomaterials of Pb-U, Pb-Th, and Pb-Co in Water-Filled Containers for Nuclear Security Applications
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Materials Data on UPb3 by Materials Project
UPb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. U is bonded to twelve equivalent Pb atoms to form a mixture of corner and face-sharing UPb12 cuboctahedra. All U–Pb bond lengths are 3.42 Å. Pb is bonded in a distorted square co-planar geometry to four equivalent U atoms.
36 MATERIALS SCIENCE↗
Materials Data on UPb by Materials Project
UPb is Tetraauricupride structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. U is bonded in a distorted body-centered cubic geometry to eight equivalent Pb atoms. All U–Pb bond lengths are 3.35 Å. Pb is bonded in a distorted body-centered cubic geometry to eight equivalent U atoms.
36 MATERIALS SCIENCE↗
Materials Data on UPb by Materials Project
UPb crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. U is bonded in a 12-coordinate geometry to eight equivalent Pb atoms. There are four shorter (3.24 Å) and four longer (3.46 Å) U–Pb bond lengths. Pb is bonded in a 12-coordinate geometry to eight equivalent U atoms.
36 MATERIALS SCIENCE↗
Materials Data on UPb2 by Materials Project
UPb2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. U is bonded in a 9-coordinate geometry to two equivalent U and seven Pb atoms. Both U–U bond lengths are 2.49 Å. There are a spread of U–Pb bond distances ranging from 3.32–3.58 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 3-coordinate geometry to four equivalent U and four equivalent Pb atoms. There are a spread of Pb–Pb bond distances ranging from 3.29–3.38 Å. In the second Pb site, Pb is bonded in a 7-coordinate geometry to three equivalent U and four equivalent Pb atoms.
36 MATERIALS SCIENCE↗