Fig. 4: Molecular stacking mode of the thermodynamically stable 1AggII.

a–d X-ray single-crystal structures of 1AggII (CCDC: 2351020) at different views. The orange and green colored background in d indicate the position of edge-to-face stacking of indoles and offset stacking of anthryl, respectively. e The experimental and calculated PXRD pattern of 1AggI and 1AggII.