On the accurate bond-valence parameters for the Sb~(3+)/O ~(2-) ion pair

摘要

The improved values of the bond-valence parameters for the Sb ~(3+)/O~(2-) ion pair, r 0 = 1.927 ? and b = 0.446 ?, have been deduced from the crystal structures of the and Β polymorphs of Sb2O3 and from the set of precisely determined complex structures containing [Sb~(3+)O n ] coordination shells.