Alaasar, Mohamed; Darweesh, Ahmed F.; Cai, Xiaoqian; Liu, Feng; Tschierske, Carsten published the artcile< Mirror Symmetry Breaking and Network Formation in Achiral Polycatenars with Thioether Tail>, Recommanded Product: 5-Bromo-2,2′-bithiophene, the main research area is alkylsulfanylbenzoyl oxyphenyl dithienylphenyl trialkoxybenzoate preparation thermal stability; bithophene; chirality; cubic phases; liquid crystals; mirror symmetry breaking; soft matter.
The design and mol. self-assembly of two series of rod-like achiral polycatenar mols. derived from a π-conjugated 5,5′-diphenyl-2,2′-bithiophene core with a fork-like triple alkoxylated end and a variable single alkylthio chain at the other end was discussed. In both series of liquid crystalline materials, differed in the chain length at the trialkoxylated end, helical self-assembly of the π-conjugated rods in networks occurs, leading to wide temperature ranges (>200 K) of bicontinuous cubic network phases, in some cases it stayed stable even around ambient temperatures The achiral bicontinuous cubic Ia3d phase (gyroid) was replaced upon alkylthio chain elongation by a spontaneous mirror symmetry broken bicontinuous cubic phase (I23) and a chiral isotropic liquid phase (Iso1[*]). Further chain elongation resulted in removing the I23 phase and the re-appearance of the Ia3d phase with different pitch lengths. In the second series an addnl. tetragonal phase separated the two cubic phase types.
Chemistry – A European Journal published new progress about Benzoates Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Recommanded Product: 5-Bromo-2,2′-bithiophene.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary