Water and q-Gaussians (Raman Spectroscopy)

A large literature exists about the Raman spectroscopy of water. Here we present some articles regarding the spectral region between 2800 and 3800 cm⁻¹, that is the O-H stretching Raman band, and the proposed decomposition obtained by means of Gaussian profiles. We will also consider the decomposition of this region with three q-Gaussian functions, instead of the five Gaussians usually considered. Being the q-parameter of q-Gaussians related to the correlation time of stochastic Kubo approach to fluctuations, we propose its use to characterize the local environment of O-H bonds.