Materials Data on RbAlFe2F2 by Materials Project
RbFe2AlF2 crystallizes in the tetragonal P4/mbm space group. The structure is two-dimensional and consists of two rubidium molecules and one Fe2AlF2 sheet oriented in the (0, 0, 1) direction. In the Fe2AlF2 sheet, Fe is bonded in a distorted linear geometry to two equivalent Al atoms. Both Fe–Al bond lengths are 2.47 Å. Al is bonded in a linear geometry to four equivalent Fe and two equivalent F atoms. Both Al–F bond lengths are 1.83 Å. F is bonded in a single-bond geometry to one Al atom.
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