Materials Data on TmOF by Materials Project
TmOF is Baddeleyite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Tm3+ is bonded to four equivalent O2- and three equivalent F1- atoms to form a mixture of distorted corner and edge-sharing TmO4F3 pentagonal bipyramids. There are a spread of Tm–O bond distances ranging from 2.21–2.26 Å. There are a spread of Tm–F bond distances ranging from 2.26–2.39 Å. O2- is bonded to four equivalent Tm3+ atoms to form a mixture of distorted corner and edge-sharing OTm4 tetrahedra. F1- is bonded in a 3-coordinate geometry to three equivalent Tm3+ atoms.
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