Materials Data on Ba2Pb by Materials Project
Ba2Pb is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ba sites. In the first Ba site, Ba is bonded in a 3-coordinate geometry to five equivalent Pb atoms. There are a spread of Ba–Pb bond distances ranging from 3.68–4.26 Å. In the second Ba site, Ba is bonded to four equivalent Pb atoms to form a mixture of edge and corner-sharing BaPb4 tetrahedra. There are a spread of Ba–Pb bond distances ranging from 3.54–3.64 Å. Pb is bonded in a 9-coordinate geometry to nine Ba atoms.
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