About the multiple linear regressions applied in studying the solvatochromic effects

Abstract: Statistical analysis is applied to study the solvatochromic effects using the solvent parameters (regressors) influencing the spectral shifts in the electronic spectra. The data pointed to eliminate the non-significant parameters and the aberrant points (for which supplemental interactions were neglected in used theories) from those supposed to multi-linear regression. A BASIC program permits to follow these desiderates step by step. In order to exemplify the steps of regression, the wavenumbers of the maximum π–π* absorption band of three benzene derivatives in various solvents were used. [Copyright &y& Elsevier]