Investigations of preferential solvation on 1,4-dimethoxy-3-methyl anthracene-9,10-dione

Preferential solvation of 1,4-dimethoxy-3-methyl anthracene-9,10-dione (DMMAD) has been investigated using optical absorption technique. The preferential solvation parameters show that the DMMAD is preferentially solvated by acetone in acetone (AC) + propan-2-ol (PROH), AC + CH 2Cl 2 and AC + CCl 4 mixtures. DMMAD prefers PROH in PROH + CCl 4 mixture. In the case of benzene + CCl 4 mixture DMMAD is preferentially solvated by benzene in benzene rich region and by CCl 4 in CCl 4 rich region. The results have been discussed in terms of hydrogen bonding, dipole–dipole and induced dipole–dipole interactions between DMMAD and solvent molecules.