Materials Data on SiI4 by Materials Project
SiI4 is Silicon tetrafluoride-like structured and crystallizes in the cubic Pa-3 space group. The structure is zero-dimensional and consists of eight silicon tetraiodide molecules. Si4+ is bonded in a tetrahedral geometry to four I1- atoms. There are one shorter (2.45 Å) and three longer (2.46 Å) Si–I bond lengths. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a single-bond geometry to one Si4+ atom. In the second I1- site, I1- is bonded in a single-bond geometry to one Si4+ atom.
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