4, 4′-(Fluorene-9, 9-diyl) diphenol (1) is demonstrated to be both an effective clathrate host in itself and a useful construction element to form a rigid macrocyclic host compound 2. The X-ray crystal structures of 1 and of its inclusion compounds with acetonitrile (1∶ 1) and ethanol (1∶ 2) as well as the inclusion compound of 2 with dimethyl sulfoxide (1∶ 4) and the mixed-guest inclusion compounds of 2 with 2-picoline, 3-picoline or 4-picoline and ...
