Dipole Moments, Kerr Constants and Solute Conformations of the Aryl Methyl Sulfones p-XC₆H₄S(0₂)CH₃ (X = H, Cl, BR or NO₂)

Abstract

Measurements are reported of the infinite-dilution dipole moments and molar Kerr constants of dimethyl sulfone and of the four aryl methyl sulfones _p-XC₆H₄S(0₂)CH₃ (X = H, Cl, Br or NO₂) dissolved in carbon tetrachloride or dioxan at 298 K and under light of 589 nm. The experimental data are analysed to obtain information on the solution-state conformations in relation to steric and electromeric effects operative between the aryl and methanesulfonyl groups.