198 Topics in Current Chemistry Editorial Board: A. de Meijere KN ...

108 R.E. Meléndez · A.D. Hamilton
a
b
13 14
Fig. 11. Tapes and ribbons formed by 13 and 14
between adjacent molecules. The aggregation of these molecules does not occur
in a cyclic hexamer, but as tapes (Fig. 11d) [46]. It is likely that, despite the presence
of a bulky substituent in the 5-position, formation of tapes optimizes van
der Waals interactions between the longer hydrophobic chains.
The primary characteristic in the crystal packing of trimesic acid (2) (Fig. 9)
that has caught the interest of chemists is the formation of cavities that are 14 Å