Materials Data on BaMgPb by Materials Project
BaMgPb is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ba is bonded to four equivalent Ba, four equivalent Mg, and four equivalent Pb atoms to form a mixture of distorted corner and face-sharing BaBa4Mg4Pb4 cuboctahedra. All Ba–Ba bond lengths are 3.60 Å. All Ba–Mg bond lengths are 3.93 Å. All Ba–Pb bond lengths are 3.64 Å. Mg is bonded in a single-bond geometry to four equivalent Ba and one Pb atom. The Mg–Pb bond length is 2.93 Å. Pb is bonded in a 1-coordinate geometry to four equivalent Ba and one Mg atom.
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