Figure 4
Time-series snapshot optical microscope images for 2 and 3 in the mother solution. (a) Needle-shaped crystals of 2 obtained after 10 h. (b) Brick-shaped crystals of 3 appear (orange circles). (c)–(f) The needles of 2 disappear gradually and the number and size of the bricks of 3 increase. (g) Only the brick-shaped crystals of 3 exist after 96 h. |