DIELECTRIC STUDIES OF HYDROGEN-BONDED COMPLEXES TRI-N-BUTYL PHOSPHATE(TBP) WITH LONG-CHAIN ALIPHATIC-ALCOHOLS

The mechanism of dipolar complexation involving TBP and three long cha in aliphatic alcohols namely 1-hexanol, 1-heptanol, 1-octanol in a non -polor medium (benzene) was investigated from dielectric measurements at frequency 455 kHz and at temperature 303.16 K using modified Palit' s method, The dipole moment of the complex (mu(bc)), interaction dipol e moment (Delta mu), dipole moment of the H-bonded bridge (mu) and in duced polarization (Delta P) for the thermodynamically most favoured g eometry of 1:1 complexes of these systems were computed. The results s hows that complexation is due to partial proton transfer in all the ca ses studied and the tendency of complex formation is maximum in 1-hept anol system.