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The title compound, tetrapotassium diantimony trioxide, crystallizes in the hexagonal space group P63mc. The structure consists of stacking of trigonal-pyramidal Sb2O34- anions along the c axis. The Sb-Sb bond length of 2.803(3)Å corresponds to a metal-metal single bond, while very short Sb-O bond lengths of 1.74(2)Å are characteristic of double bonds.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks br1231, global

hkl

Structure factor file (CIF format)
Contains datablock ksbo

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