Synthesis and properties of high tilted antiferroelectric esters with partially fluorinated alkoxyalkoxy terminal chains

The temperature and concentration dependence of helical pitch in the mixtures of antiferroelectric compounds with the opposite helical twist sense

“…The same is also observed in SmC * A phase [18]. Recently, it was found that orthoconic antiferroelectric compounds, being members of homologues series 3FmHPhF, have a different dependence of helical pitch upon temperature in SmC * A phase [21]. In this work we determined their helix twisting sense, showing the appearance of sense inversion.…”

“…The helical pitch p of pure compounds 3FmHPhF changes upon temperature in various ways [21]. The temperature dependence of pitch for short members (m = 2, 3, 4) increases, and for longer members (m = 6, 7) decreases.…”

Design, synthesis and mesomorphic properties of chiral benzoates and fluorobenzoates with direct SmCA*-Iso phase transition

“…[19] In the case of compounds (F) instead of (S)-(+)-2-octanol, a different chiral 2-alcanols: Enantiomerically pure chiral alcohols were synthesised in our laboratory using a new, conventional procedure of preparing chiral alcohol, which will be presented in a future article.…”

Comparative electrooptic study of new orthoconic liquid crystals with fluorinated alkoxy terminal chains

“…An efficient preparation of the series has been presented elsewhere [6,7]. The F 2n+1 C n CH 2 O-group and the length of methylene spacer (i.e., the value of the index m) strongly in− fluence the temperature range of all phases, their stability and the whole sequence.…”