Materials Data on AlSiPt6 by Materials Project
Pt6SiAl crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional and consists of two aluminum molecules and one Pt6Si framework. In the Pt6Si framework, there are three inequivalent Pt+0.17+ sites. In the first Pt+0.17+ site, Pt+0.17+ is bonded in a linear geometry to two equivalent Si4- atoms. Both Pt–Si bond lengths are 2.77 Å. In the second Pt+0.17+ site, Pt+0.17+ is bonded in an L-shaped geometry to two equivalent Si4- atoms. Both Pt–Si bond lengths are 2.86 Å. In the third Pt+0.17+ site, Pt+0.17+ is bonded in an L-shaped geometry to two equivalent Si4- atoms. Both Pt–Si bond lengths are 2.68 Å. Si4- is bonded to twelve Pt+0.17+ atoms to form a mixture of face and corner-sharing SiPt12 cuboctahedra.
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