Jeong, Hyeon Su published the artcileSpontaneous chirality induction and enantiomer separation in liquid crystals composed of achiral rod-shaped 4-arylbenzoate esters, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Journal of the American Chemical Society (2009), 131(41), 15055-15060, database is CAplus and MEDLINE.
The discovery of spontaneously induced chirality and enantiomeric separation in liquid crystal and soft crystal systems composed of achiral rod-shaped 4-arylbenzoate esters is described. Negligibly small CD signals are produced in the smectic A phases of these substances, and the signals were found to increase with increasing smectic order. Since the advent of chirality occurs in freely suspended films, it is not a consequence of surface effects. Both pos. and neg. CD signals are observed with equal probability at different positions in these films. Vibrational CD spectroscopy and theor. calculations are used to analyze the conformational changes that are associated with the induced chirality of the rod-shaped mols. The results show that the phenomenon is caused by the twisting of biphenyl bond associated with the ester moiety in 4-arylbenzoate esters.
Journal of the American Chemical Society published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.
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