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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Sn2OF2 by Materials Project

Sn2OF2 crystallizes in the monoclinic C2/m space group. The structure is one-dimensional and consists of two Sn2OF2 ribbons oriented in the (0, 0, 1) direction. there are two inequivalent Sn2+ sites. In the first Sn2+ site, Sn2+ is bonded in a rectangular see-saw-like geometry to two equivalent O2- and two equivalent F1- atoms. Both Sn–O bond lengths are 2.13 Å. Both Sn–F bond lengths are 2.41 Å. In the second Sn2+ site, Sn2+ is bonded in a 3-coordinate geometry to one O2- and two equivalent F1- atoms. The Sn–O bond length is 2.09 Å. Both Sn–F bond lengths are 2.18 Å. O2- is bonded in a distorted trigonal planar geometry to three Sn2+ atoms. F1- is bonded in a distorted bent 150 degrees geometry to two Sn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sn2OF2 by Materials Project

Sn2OF2 crystallizes in the tetragonal P4_2/nmc space group. The structure is three-dimensional. Sn2+ is bonded to two equivalent O2- and four equivalent F1- atoms to form a mixture of distorted edge and corner-sharing SnO2F4 pentagonal pyramids. There are one shorter (2.16 Å) and one longer (2.45 Å) Sn–O bond lengths. There are two shorter (2.46 Å) and two longer (2.62 Å) Sn–F bond lengths. O2- is bonded to four equivalent Sn2+ atoms to form distorted edge-sharing OSn4 tetrahedra. F1- is bonded in a 4-coordinate geometry to four equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗