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Information × Registration Number 0219U100250, 0117U001684 , R & D reports Title The influence of the molecular structure of chiral components on some practically important characteristics of induced ferroelectric liquid crystals popup.stage_title Head Санін Едуард Віталійович, Registration Date 01-02-2019 Organization State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine popup.description2  During the reporting period, the higher homologs of the previously described symmetric p-terphenyldicarboxylic esters were synthesized using 1,1,1-trifluoro-dodecan-2-ol and 1,1,1-trifluorounundecane-2-ol as the key chiral intermediats, synthesis of chiral components, in molecules of which the terminal “chiral fragments” are a combination of lactate and octan-2-ol residues, synthesis of a symmetric n-terphenyl dicarboxylic diester and chiral 2-fluoro-octan-1-ol. It is shown that: diastereomers of bis ((S)-1-(((S)-octan-2-yloxy)carbonyl) ethyl)-4,4'-terphenyldicarboxylate and bis ((S)-1-((R)-octan-2-yloxy)carbonyl) ethyl)-4,4'-terphenyl dicarboxylate can be obtained according to the scheme developed for fluorinated analogues, the previously developed method of esterification of p-terphenyldicarboxylic acid with secondary alcohols can be used to obtain a symmetrical p-terphenyldicarboxylic acid and chiral diester 2-fluoro-octan-1-ol, introduction into terminal positions of molecules of derivatives of p-terphenyldicarboxylic acid 2-fluorotorooctanol fragment leads to the appearance of an intrinsic mesomorphism. The change in the absolute configuration from (R) to (S) of the chiral center of the alcohol fragment of the terminal substituents of diasteromeric symmetric p-terphenyldicarboxylic esters, whose molecules contain conjugated (S)-lactate and octane-2-ol fragments , leads to increase their helical twisting power. Product Description popup.authors popup.nrat_date 2020-04-02 Close