Figure 2
Single crystals of C5H3N7 obtained from different high-pressure recrystallizations: (a) at 0.20 GPa (viewed in polarized light) and (b) at 0.85 GPa, both from the acetone solution; (c) at 0.14 GPa and (d) at 1.02 GPa, both from aqueous solution and viewed in polarized light. |