Dielectric Studies of Hydrogen Bonded Complexes Tri-n-Butyl Phosphate (TBP) with Long-Chain Aliphatic Alcohols

Abstract

The mechanism of dipolar complexation involving TBP and three long chain 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 (µ b c ), interaction dipole moment (Δµ), dipole moment of the H-bonded bridge (µ * ) and induced polarization (Δ P ) for the thermodynamically most favoured geometry of 1:1 complexes of these systems were computed. The results shows that complexation is due to partial proton transfer in all the cases studied and the tendency of complex formation is maximum in 1-heptanol system.