Johansson, Gary published the artcileMolecular recognition directed self-assembly of tubular liquid crystalline and crystalline supramolecular architectures from Taper Shaped (15-crown-5)methyl 3,4,5-tris(p-alkyloxybenzyloxy)benzoates and (15-crown-5)methyl 3,4,5-tris(p-dodecyloxy)benzoate, Computed Properties of 6214-45-5, the main research area is crown ether hydroxymethyl benzoate derivative; liquid crystalline hydroxymethyl crown benzoate; supramol architecture hydroxymethyl crown benzoate; mol recognition hydroxymethyl crown benzoate.
The syntheses and characterization of title crown ether derivatives I [R = p-Me(CH2)nOC6H4CH2, where n = 3, 5, or 11 (27); R = Me(CH2)11 (28)] are described. Complexation of the crown ether endo-receptor with CF3SO3Na destabilizes the crystalline phase of I and induces for the case of 27 and 28 the self-assembly of a supramol. cylindrical channel-like architecture which displays a thermotropic hexagonal columnar (Φh) mesophase. Most remarkably, in the crystalline phase of the complexes of 27 with CF3SO3Na the cylindrical structure of the Φh mesophase is maintained. Characterization of these supramol. architectures was performed by a combination of differential scanning calorimetry, thermal optical polarized microscopy, X-ray scattering and mol. modeling. A model is proposed in which a stratum of the column is formed by six mols. of 27 and 28 with the crown ether receptors residing in the column center and the alkyl tails radiating toward the column periphery. Endo-Recognition generated via the (15-crown-5)methyl receptor upon complexation, and exo-recognition provided by the tapered 3,4,5-tris(p-dodecyloxybenzyloxy)benzoate and 3,4,5-tris(p-dodecyloxy)benzoate fragments of 27 and 28 provide the driving force for the self-assembly of this cylindrical supramol.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry published new progress about Liquid crystals. 6214-45-5 belongs to class alcohols-buliding-blocks, name is (4-Butoxyphenyl)methanol, and the molecular formula is C11H16O2, Computed Properties of 6214-45-5.
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