Materials Data on Ac3Si by Materials Project
Ac3Si crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ac is bonded in a 4-coordinate geometry to four equivalent Si atoms. There are two shorter (3.42 Å) and two longer (3.80 Å) Ac–Si bond lengths. Si is bonded to twelve equivalent Ac atoms to form a mixture of distorted face and corner-sharing SiAc12 cuboctahedra.
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