Figure 4
Unit-cell dimensions of benzene I plotted as a function of pressure (shown as dashed lines; the scale in GPa units is at the top of the plot) and as a function of temperature (the reverse scale at the bottom and solid-line plots). Low-temperature data were measured for C6H6 (Cox et al., 1958; Bacon et al., 1964) and C6D6 at 123 and 15 K (Jeffrey et al., 1987). The unit-cell parameters measured at 0.07 GPa (Weir et al., 1969) have been excluded from the regression lines, as they considerably divert from the other results – see the text. |