The effect of the location of the chlorine atoms on the dynamics, polarity, and thermal properties of the isomers derived from (4??acetyloxyphenyl)??(chlorophenyl)??methanone is discussed. The changes occurring in the dipole moments along the trajectories in their respective conformational spaces are rather large (between 6.0 and 0.3 D) for (4?? acetyloxyphenyl)??(2??chlorophenyl)??methanone (2CPM), slightly lower for (4?? ...