Collective proton motions in H2O/H2O2 mixtures: Evidence for defects and network reconstruction

Abstract

Measurements of the in-phase collective OH stretching band in the Raman spectrum of H2O/H2O2 mixtures have been carried out over a wide range of compositions and temperatures. At low mole fractions (<0.08) H2O2 introduces defects into the tetrahedral network of the water molecules, whereas at higher concentrations the behavior is interpreted in terms of a reduction of the vibron bandwidth resulting from reconstruction of the hydrogen bond network to one of lower average coordination.