highly significantp < 0.01
The coefficients associated with polarity/polarizability ( s 1 ), hydrogen-bond acidity ( a 1 ), and dispersion interactions ( l 1 ) are highly significant ( p < 0.01), whereas the coefficients corresponding to excess molar refraction ( e 1 ) and hydrogen-bond basicity ( b 1 ) are statistically insignificant ( p > 0.05).