A simplified empirical model for approximation of the 'bond valence-bond length' correlation for H-O bonds

The `bond valence (s)-bond length (r)' correlation reported earlier for H-O bonds [Brown (2009). Chem. Rev. 109, 6858-6919] has been closely approximated using the function s = (alpha - beta r)1/gamma, where alpha = 1.185 (10), beta = 0.321 (8) and gamma = 0.36.