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DOE OSTI2020

Materials Data on Si2O by Materials Project

SiOSi crystallizes in the monoclinic Cm space group. The structure is one-dimensional and consists of two SiOSi ribbons oriented in the (0, 1, 0) direction. there are two inequivalent Si sites. In the first Si site, Si is bonded in a single-bond geometry to one O atom. The Si–O bond length is 1.73 Å. In the second Si site, Si is bonded in a water-like geometry to two equivalent O atoms. Both Si–O bond lengths are 2.00 Å. O is bonded in a trigonal planar geometry to three Si atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Si2O by Materials Project

SiOSi is high (beta) Cristobalite structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Si is bonded in a linear geometry to two equivalent O atoms. Both Si–O bond lengths are 2.03 Å. O is bonded to four equivalent Si atoms to form corner-sharing OSi4 tetrahedra.

36 MATERIALS SCIENCE↗