Synclinic and anticlinic properties of (R,S) 4′-(1-methylheptyloxycarbonyl)biphenyl-4-yl 4-[7-(2,2,3,3,4,4,4-heptafluorobutoxy)heptyl-1-oxy]benzoates

Urbańska, Magdalena; Dziaduszek, Jerzy; Strzeżysz, Olga; Szala, Mateusz

doi:10.1080/01411594.2019.1616196

Cited by 8 publications

(7 citation statements)

References 32 publications

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“…The mixtures doped with the racemates have favorable physical and electro-optical properties, as previously shown in Refs. [3][4][5]. In the next step, the measurements of the tilt angle of the molecules and the spontaneous polarization for the doped mixtures will be carried out.…”

Section: Discussionmentioning

confidence: 99%

“…The synthesis of the racemates was carried out as described in Ref. [3]. The benzoic acids were synthesized using the method described in Ref.…”

Section: Synthesis Of the Racemic Mixturesmentioning

confidence: 99%

“…The aim of the work is to discuss the mesomorphic properties of the racemates with a widetemperature anticlinic phase and to demonstrate the advisability of using the racemates as dopants for the antiferroelectric mixtures. If so, it would be possible to extend the range of the antiferroelectric phase and thus increase the helical pitch, which is quite sensitive to doping [3,4,[22][23][24][25]. An analysis of the obtained results is presented.…”

Section: Introductionmentioning

confidence: 96%

“…The use of the racemates also leads to a reduction in the preparation costs of the liquid crystalline The racemates can be used as dopants for the liquid crystalline mixtures, improving some of their properties, such as the antiferroelectric phase range, the helical pitch length, the reduction of the rotational viscosity, the decrease of the values of the spontaneous polarization, etc. [3][4][5]. Liquid crystalline mixtures are widely used in optical devices; therefore, new materials are constantly being developed for this purpose [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Mesomorphic Properties and Application of (R,S)-1-Methylpentyl 4′-Hydroxybiphenyl-4-carboxylate Derivatives

Urbańska

Szala

2022

Crystals

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Thirteen new liquid crystalline racemic mixtures were synthesized and investigated. For these racemic mixtures, the phase sequences and their changes were determined by polarizing optical microscopy (POM). The phase transition temperatures and transition enthalpies were checked by differential scanning calorimetry (DSC). All new racemates have an anticlinic smectic CA phase in a broad temperature range. Three highly tilted antiferroelectric mixtures were doped with six racemates at a concentration of 20% by weight. The helical pitch of the prepared mixtures was measured by the spectrophotometry method. All doped mixtures have a longer helical pitch than the base mixtures.

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Section: Discussionmentioning

confidence: 99%

“…The synthesis of the racemates was carried out as described in Ref. [3]. The benzoic acids were synthesized using the method described in Ref.…”

Section: Synthesis Of the Racemic Mixturesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis, Mesomorphic Properties and Application of (R,S)-1-Methylpentyl 4′-Hydroxybiphenyl-4-carboxylate Derivatives

Urbańska

Szala

2022

Crystals

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“…These mixtures were synthesized as shown in Refs. [38,39]. The studied racemates were prepared by treating (R,S) 4′-(1methylheptyloxycarbonyl)biphenol with benzoic acid chloride.…”

Section: Racemic Mixturesmentioning

confidence: 99%

Application of Polysaccharide‐Based Columns for the Separation of Racemic Mixtures Obtained Based on (R,S)‐2‐Octanol by Reversed‐Phase Chiral Liquid Chromatography

Urbańska

2024

Preprint

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The polysaccharide-based chiral stationary phase (CSP) columns for high-performance liquid chromatography (HPLC) were applied in the separation of liquid crystalline racemic mixtures obtained based on (R,S)-2-octanol and were found to be highly effective in recognizing isomers of minor structural differences. The mobile phase (MP), which consists of acetonitrile (ACN)/water (H2O) at different volume ratios, was used. All measurements were made at room temperature. The order of the elution was also determined. The chromatographic parameters such as resolution - (Rs), selectivity - (α), and the number of theoretical plates, i.e., column efficiency - (N), were determined. The polysaccharide-based CSP columns have unique advantages in separation technology, and this study has shown the potential usefulness of the CSP columns in separating liquid crystalline racemic mixtures belonging to the same homologous series.

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Highly tilted antiferroelectric (R) enantiomers useful for the formulation of eutectic mixtures

2019

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Synclinic and anticlinic properties of (R,S) 4′-(1-methylheptyloxycarbonyl)biphenyl-4-yl 4-[7-(2,2,3,3,4,4,4-heptafluorobutoxy)heptyl-1-oxy]benzoates

Cited by 8 publications

References 32 publications

Synthesis, Mesomorphic Properties and Application of (R,S)-1-Methylpentyl 4′-Hydroxybiphenyl-4-carboxylate Derivatives

Synthesis, Mesomorphic Properties and Application of (R,S)-1-Methylpentyl 4′-Hydroxybiphenyl-4-carboxylate Derivatives

Application of Polysaccharide‐Based Columns for the Separation of Racemic Mixtures Obtained Based on (R,S)‐2‐Octanol by Reversed‐Phase Chiral Liquid Chromatography

Highly tilted antiferroelectric (R) enantiomers useful for the formulation of eutectic mixtures

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