Reorientational dynamics in a liquid organized system: Brillouin and depolarized Rayleigh scattering experiments in 1-octanol

Light scattering experiments, with dispersive and interferometric technique s, have been performed to study the orientational relaxation dynamics in I- octanol, a structured liquid system having quite long living H-bonded clust ers. Different temporal windows have been opened with these experiments to investigate the temporal events connected to the orientational relaxation d ynamics of this molecular liquid. The present results have been compared wi th previous Monte Carlo MD simulations and experimental dielectric relaxati on functions. They show that in the high frequency domain two additional ve ry fast processes can be detected which have not been revealed by dielectri c function relaxation.