Si is BC8 structured and crystallizes in the cubic Ia-3 space group. Si(1) is bonded to four equivalent Si(1) atoms to form corner-sharing SiSi4 trigonal pyramids.
Si is BC8 structured and crystallizes in the cubic Ia-3 space group. Si(1) is bonded to four equivalent Si(1) atoms to form corner-sharing SiSi4 trigonal pyramids. There is one shorter (2.34 Å) and three longer (2.39 Å) Si(1)-Si(1) bond lengths.