《Liquid crystal dimers containing Cholesteryl and Triazole-containing mesogenic units》 was written by Al-shargabi, Arwa; Yeap, Guan-Yeow; Mahmood, Wan Ahmad Kamil; Han, Chun-Chieh; Lin, Hong-Cheu; Ito, Masato M.. Safety of 8-Bromooctanoic acid And the article was included in Liquid Crystals in 2020. The article conveys some information:
New liquid crystals categorized as cholesteryl dimers have been successfully synthesized through the reaction between cholesteryl 4-(prop-2-ynyloxy)benzoate moieties with n-azido(cholesteryloxy-carbonyl)alkane. All the dimers display enantiotropic mesophases. While the odd-numbered dimers exhibit chiral nematic (N*), twisted grain boundary (TGB) and chiral smectic C (SmC*) phases, the even-numbered members from the same series show chiral smectic A and C. A detailed inspection on mesophase reveals that the chiral centers and the bent conformation of the odd-numbered members are essential for the induction of TGB phase. However, upon decreasing the temperature, the ratio of the transition temperatures (TSmC*-SmA*/TSmA*-I) is found to be 0.95, which indicate the second order transition according to the McMillan’s mol. theory. In addition, the X-ray diffraction study supports the presence of the smectic A phase on the even members rather than the N* by the appearance of the Bragg diffraction peaks at 190°. A comparison study with the other analogs in which the cholesterol entity is substituted by azobenzene or bipheny tails has been carried out to assess the relationship between the mol. structure and mesomorphic behavior.8-Bromooctanoic acid(cas: 17696-11-6Safety of 8-Bromooctanoic acid) was used in this study.
8-Bromooctanoic acid(cas: 17696-11-6) acid is used in the synthesis of 8-(N-Methyl-4,4′-bipyridinyl)- octanoic acid. 8-Mercaptooctanoic acid was prepared from 8-bromooctanoic acid. And 8-Bromooctanoic Acid is a useful compound for sonodynamic therapy.Safety of 8-Bromooctanoic acid
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary