Comparison of Mesomorphic Properties in Chiral and Achiral Homologous Series of High Tilted Ferroelectrics and Antiferroelectrics

Gąsowska, J.; Dąbrowski, R.; Drzewiński, W.; Filipowicz, M.; Przedmoj̇ski, J.; Kenig, K.

doi:10.1080/00150190490509962

Cited by 59 publications

(22 citation statements)

References 10 publications

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“…Many homologous series of esters, mainly of formula I, with perfluoroalkanoyl unit in the terminal chain have been prepared [2,3] where P 1 and P 2 = 1 or 2.…”

Section: Introductionmentioning

confidence: 99%

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

Żurowska

Dąbrowski

Dziaduszek

et al. 2008

Opto-Electronics Review

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“…Many homologous series of esters, mainly of formula I, with perfluoroalkanoyl unit in the terminal chain have been prepared [2,3] where P 1 and P 2 = 1 or 2.…”

Section: Introductionmentioning

confidence: 99%

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

Żurowska

Dąbrowski

Dziaduszek

et al. 2008

Opto-Electronics Review

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“…Dabrowski's group has synthesized several highly tilted AFLCs with alkanoyloxy or perfluoroalkanoyloxy group in a terminal chain [4][5][6]. In the present work, we report dielectric studies on one enantiomeric member of this series, namely, (S)-4-(1-methylheptyloxycarbonyl)phenyl-4 0 -(6-pentanoyloxyhex-1-oxy)-biphenyl-4-carboxylate (4H6Bi(S)).…”

Section: Introductionmentioning

confidence: 96%

“…1. The transition temperatures (1C) and corresponding enthalpies (kcal/mol) of this compound as obtained from differential scanning calorimeter (DSC) and thermomicroscopic (TM) texture studies in the heating cycle are given in Table 1 [5].…”

Section: Introductionmentioning

confidence: 99%

Characteristic dielectric parameters of para-, ferro- and antiferro-electric phases of (S)-4-(1-methylheptyloxycarbonyl)phenyl-4′-(6-pentanoyloxyhex-1-oxy)biphenyl-4-carboxylate

Kumari

Dhar

Pandey

et al. 2009

Journal of Physics and Chemistry of Solids

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“…2 The latter path is common in 'standard' alkyl chain AFLCs, but almost never observed in AFLCs with one or two fluorinated terminal chains [8,9]. The location of SmC β * and SmC γ * between SmC* and SmC a * early on led to the natural suggestion that these phases appear as a result of competition / frustration between syn-and anticlinicity, or between syn-and antipolarity [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Frustration between syn- and anticlinicity in mixtures of chiral and non-chiral tilted smectic-C-type liquid crystals

2005

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Abstract. We study the effects of mixing ferroelectric and antiferroelectric liquid crystal compounds (FLCs and AFLCs) when the former are strictly synclinic and the latter strictly anticlinic, i.e. one mixture component exhibits only SmC* and the other only SmCa* as tilted phase. Three different paths between syn-and anticlinicity were detected: transition directly between SmC* and Sm-C a*, transition via the SmC β * and SmCγ* subphases, or by 'escaping' the clinicity frustration by reducing the tilt to zero, i.e. the SmA* phase is extended downwards in temperature, separating SmC* from SmCa* in the phase diagram. The most common path is the one via the subphases, demonstrating that these phases appear as a result of frustration between syn-and anticlinic and, consequently, between syn-and antipolar order. For assessing the role of chirality, we also replaced the FLC with non-chiral synclinics. With one of the AFLCs, the route via supbhases was detected even in this case, suggesting that chirality -although necessary -does not have quite the importance that has previously been attributed to the appearance of the subphases. The path chosen in the mixture study seemed to be determined mainly by the synclinic component, the subphase induction occurring only when the Sm-A*-Sm-C * transition was second-order.

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Comparison of Mesomorphic Properties in Chiral and Achiral Homologous Series of High Tilted Ferroelectrics and Antiferroelectrics

Cited by 59 publications

References 10 publications

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

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

Characteristic dielectric parameters of para-, ferro- and antiferro-electric phases of (S)-4-(1-methylheptyloxycarbonyl)phenyl-4′-(6-pentanoyloxyhex-1-oxy)biphenyl-4-carboxylate

Frustration between syn- and anticlinicity in mixtures of chiral and non-chiral tilted smectic-C-type liquid crystals

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