Designer Host–Guest Complexes: Co-Crystals of 1,3-Adamantanedicarboxylic Acid and 4,7-Phenanthroline with Some Guests

Multicomponent host–guest
complexes consisting of 1,3-adamantanedicarboxylic
acid (1) and 4,7-phenanthroline (phen) as the host moiety
with different guests are prepared through co-crystallization. Detailed
structural analysis of the obtained complexes, characterized by the
single-crystal X-ray diffraction method, has been reported. In all
the complexes, molecules of 1 and phen constitute a unique
four-membered cyclic host network into a two-dimensional arrangement.
Further stacking of such networks resulted in a channel structure
directed by the guest species through O–H···O
hydrogen bonds.