Versatility in Complexation of Aprotic Guest Molecules by Terphenyl-Based Bisfluorenol Hosts. Structural Modes in the Crystalline Inclusions and of a Guest-Free Host Compound

Crystalline
inclusion compounds of diol hosts 1 and 2 typical of a basic 2,2″-[1,1′:4′,4″]-terphenyl
moiety with two attached 9-fluorenol or tert-butyl-substituted
9-fluorenol units and a variety of aprotic guest molecules have been
prepared and studied with reference to their crystal structures. Common
and differing structural features among one another and including
previously described host–guest complexes of 1 and 2 with protic instead
of aprotic guest species are distinguished, indicating potential uses
in promising supramolecular inclusion formation and underscoring solvent
inclusion.