Brewer and coworkers explain that "The Raman spectrum of liquid water is dominated by the stretching mode band complex in the region 2800-3800 cm -1 . This complex can be deconvolved into five Gaussians each with a specific spectral assignment. was the first to attempt this and he identified three bands between 2800 and 3800 cm -1 . In subsequent papers he reported four bands and five bands . More recently and have identified five Gaussian peaks" . About one of these bands, that centered at 3052 cm -1 , Brewer and coworkers report that it is "attributable to the 2ν2 overtone of the bending vibration of the singlet water molecule … The remaining four bands reflect the population of the HB and nHB forms of water. … For pure water the band centered at 3220 cm -1 shows a decrease in area with rising temperature indicating association with an HB form [see please the Figure in ; the bands centered at 3390 cm -1 and 3485 cm -1 both increase in area with rising T showing their association with the nHB form. The remaining band centered at 3,624 cm -1 shows a small decrease in area with rising [temperature]" .