Fig. 1 | Nature Communications

Fig. 1

From: Highly compressed water structure observed in a perchlorate aqueous solution

Fig. 1

EPSR analysis of Mg(ClO4)2 44 wt% aqueous solutions. a The measured total interference differential scattering cross-section, F(Q), at 216 K as a function of Q (dots) compared to the EPSR fits (lines) for different degrees of water deuteration, H2O (blue), D2O (red) and a 50:50 mole mixture of H2O and D2O (HDO) (green). b EPSR-simulated water–water site–site RDFs at 216 K (solid lines) and 298 K (dashed lines). Also shown are the same functions for pure water at 298 K (dots)25. c Simulated Mg—water (blue and pink) and Mg—perchlorate (red and green) RDFs at 216 K (solid lines) and 298 K (dashed lines). Also shown are the running coordination numbers of the same functions at 216 K. These do not change significantly at the higher temperature. d Water volume RDF at 216 K. This is indistinguishable from the same function at 298 K. The dashed line shows the approximate slope of this RDF at low r, indicating a confining length of the water of approximately 9 Å. In plots ac the different functions are shifted vertically for clarity

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