Fig. 6: Raman spectra and illustration of the OH-sb.
From: Colossal barocaloric effect in GdCl3-doped H2O for sustainable cooling
a Raman spectra at four temperatures. b Illustration of symmetric stretching (both bonds elongate/contract simultaneously) and asymmetric stretching (one bond elongates/contracts while the other contracts/elongates), where red and white balls denote O and H atoms, respectively. (see detailed analysis given in Supplementary Note S8 and the last part of Movie S2).
