Alternative presentation of the Brown-Wu bond-valence parameters for some s(2) cation/O(2-) ion pairs
1Department of Chemistry and Research Institute for Physics and Chemistry of Solids, Uzhgorod National University, Pidgirna Street 46, Uzhgorod 88000, Ukraine. vasylsidey@yahoo.com
Abstract:
Using the least-squares refinement procedure, high-performance Brown-Wu bond-valence parameters, r(0) and n, reported for the Sn(2+)/O(2-), Sb(3+)/O(2-), Te(4+)/O(2-) and I(5+)/O(2-) ion pairs have been converted into the commonly used bond-valence parameters, r(0) and b. The r(0) and b values obtained can be recommended as a replacement for the conventional bond-valence parameters based on the 'universal constant' b = 0.37 A.
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