Materials Data on Sm(AsO)2 by Materials Project
Sm(AsO)2 crystallizes in the tetragonal I4_1/amd space group. The structure is zero-dimensional and consists of eight Sm(AsO)2 clusters. Sm2+ is bonded in a linear geometry to two equivalent O2- atoms. Both Sm–O bond lengths are 2.23 Å. As1+ is bonded in a single-bond geometry to one O2- atom. The As–O bond length is 1.77 Å. O2- is bonded in a water-like geometry to one Sm2+ and one As1+ atom.
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