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Figure 7
(a) Model of stacking-disordered ice (Isd; adapted from Malkin et al., 2012BB67) showing O atoms connected by hydrogen bonds. Along the vertical direction [normal to the (001) planes in Ih and to the (111) planes in Ic], successive cubic ice planes are horizontally shifted, whereas successive hexagonal planes are mirror-reflected about a horizontal axis. On the left, C and H indicate pairs of planes that have cubic and hexagonal stacking, respectively. On the right, Φch indicates the probability that a cubic stacking is followed by hexagonal stacking, and Φhc indicates the probability that a hexagonal stacking is followed by cubic stacking. (b, c) Cubic stacking fraction Φhc/(Φhc + Φch) versus temperature for (b) apoferritin and (c) thaumatin crystals, determined from DIFFaX fits as in Figs. 6[link](e) and 6[link](f). The symbols indicate samples with different glycerol concentrations as in Fig. 5[link].

Volume 6| Part 3| May 2019| Pages 346-356
ISSN: 2052-2525