Materials Data on SiO2 by Materials Project

Kristin Persson
SiO2 crystallizes in the orthorhombic Pcca space group. The structure is three-dimensional. Si4+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are a spread of Si–O bond distances ranging from 1.56–1.73 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two equivalent Si4+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two...
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