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.

以2,2'-[1,1':4',4'']-三联苯基为基的醇类宿主1和2的结晶性包合化合物，其中含有两个连接的9-荧光素或叔丁基取代的9-荧光素单元，以及多种无水客分子已被制备并研究，其晶体结构亦被考察。在相互之间区分了常见的及不同的结构特征，包括1和2的已描述的宿主-客体复合物，其中客体为质子性而非无水，这些特征指出了其在有前景的超分子包合形成中的潜在应用，并强调了溶剂包合的重要性。