American Chemical Society
cg400707s_si_006.cif (20.71 kB)

Host Polymorphs and Crystalline Host–Guest Complexes of 3,3′-Bis(9-hydroxy-9-fluorenyl)biphenyl

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posted on 2013-09-04, 00:00 authored by Konstantinos Skobridis, Vassiliki Theodorou, Wilhelm Seichter, Edwin Weber
The diol host compound 2 featuring a structure with two 9-fluorenol moieties attached in 3,3′-position to a biphenyl core unit has been synthesized and is shown to form crystalline inclusion complexes with organic guest molecules. Aside from the single-crystal X-ray structures of unsolvated 2 in two polymorphous forms (2A, 2B), structures of five inclusion compounds with 1,4-dioxane (2a), DMSO (2b), diethylamine (2c), acetic acid (2d), and ethyl acetate (2e) are described and comparatively discussed in the interaction behavior including corresponding host compounds with different attachment mode of the biphenyl unit and the diphenylhydroxymethyl-substituted equivalent.