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Materials Data on Ba(AuO2)2 by Materials Project

BaAu2O4 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are four shorter (2.80 Å) and four longer (2.81 Å) Ba–O bond lengths. Au3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Au–O bond lengths are 2.04 Å. O2- is bonded to two equivalent Ba2+ and two equivalent Au3+ atoms to form a mixture of distorted edge and corner-sharing OBa2Au2 tetrahedra.

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