Banana-shaped liquid crystals based on 2,7-dihydroxynaphthalene derivatives

Derkach, L. G.; Novikova, N. S.; Górecka, Ewa

doi:10.1134/s1070363215030081

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…For a better comparison of materials in the two series (1 and 2), two pairs of compounds were investigated in binary mixtures in a common host. For the non-fluorinated pair c [12] host H1 (Figure 8) was selected, [21] as the structurally closest to the investigated compounds. Its phase sequence was reexamined and established as Cr 124 B 2 172 I (reported: [21] Cr 122 N 170 I) on the basis of optical and XRD measurements (for details see the Supporting Information).…”

Section: Chemistry-a European Journalmentioning

confidence: 99%

“…For the non-fluorinated pair c [12] host H1 (Figure 8) was selected, [21] as the structurally closest to the investigated compounds. Its phase sequence was reexamined and established as Cr 124 B 2 172 I (reported: [21] Cr 122 N 170 I) on the basis of optical and XRD measurements (for details see the Supporting Information). The pair of fluorinated derivatives d[6,6] was investigated in host H2 with an enantiotropic SmA phase and a moderately high clearing temperature (Figure 8).…”

Section: Chemistry-a European Journalmentioning

confidence: 99%

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Paramagnetic Liquid Crystals With Close π–π Packing: The Effect of Blatter Radical Planarization on Behavior of Bent‐Core Mesogens

Cigl

Pociecha

Jakubowski

et al. 2023

Chemistry A European J

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A new, 19 π-delocalized electrons planar Blatter radical building block was developed and used to obtain paramagnetic bent-core liquid crystals. The mesogens were investigated by optical, thermal, powder XRD and DFT methods in the pure form and as binary mixtures. Comparison of their properties with those of the classical Blatter radical analogues revealed that planarization of the central angular element results in a significantly higher stability of the mesophases and increased molecular organization suitable for the formation of ordered banana and columnar mesophases with tighter π-π interactions. These results indicate access to a new, potentially rich class of functional paramagnetic soft materials.

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Section: Chemistry-a European Journalmentioning

confidence: 99%

Section: Chemistry-a European Journalmentioning

confidence: 99%

Paramagnetic Liquid Crystals With Close π–π Packing: The Effect of Blatter Radical Planarization on Behavior of Bent‐Core Mesogens

Cigl

Pociecha

Jakubowski

et al. 2023

Chemistry A European J

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Liquid crystalline naphthyl derivatives with bromoalkoxy tail: Photophysical behavior and DFT studies

Rabari,

Kumar  CH,

Prajapati

2023

Journal of Molecular Structure

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Synthesis, characterisation and mesomorphic behaviours of non-symmetrically substituted 1,2,4- and 1,3,4-oxadiazole derivatives

2016

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All the starting materials required for the synthesis were produced from sigma-Aldrich Company and used as received without further purification. Most the intermediate compounds in this study were prepared according to the procedures in our references [20] and [21] with a few simple modifications. The structures of all intermediates and more of final products were characterized by spectroscopic methods. FT-IR spectra of solid sample in ATR technique were recorded on Shimadzu 8400S, 1 H NMR spectra were obtained with Bruker spectrophotometer model ultrashield at 300 MHz using tetramethylsilane (TMS) as interval standard and CDCl3, DMSO-d6 as solvents. Elemental analysis for carbon, hydrogen and nitrogen were conducted using a Perkin-Elmer model 2400 instrument. Mass spectra of some compounds were recorded on Shimadzu QP1000EX using (SCI) mode. Investigation the liquid crystals properties of the final compounds were carried out by polarized optical microscopy (POM) model PW-BK 5000 PR equipped with a hot-stage system of HS-400 (KER 3100-08S). Phase transition temperatures were recorded by differential scanning calorimetry (DSC) model Linseis instrument STA PT-1000, Ramp rate: 5 °C/ min. on heating and cooling, temperature and heat flow calibrated with standard indium with heating and cooling rates of 5 °C/min -1 . Synthesis Methyl p-toluate [A]This compound was prepared by classical esterification method described by Chiang et al. [22].

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Banana-shaped liquid crystals based on 2,7-dihydroxynaphthalene derivatives

Cited by 4 publications

References 6 publications

Paramagnetic Liquid Crystals With Close π–π Packing: The Effect of Blatter Radical Planarization on Behavior of Bent‐Core Mesogens

Paramagnetic Liquid Crystals With Close π–π Packing: The Effect of Blatter Radical Planarization on Behavior of Bent‐Core Mesogens

Liquid crystalline naphthyl derivatives with bromoalkoxy tail: Photophysical behavior and DFT studies

Synthesis, characterisation and mesomorphic behaviours of non-symmetrically substituted 1,2,4- and 1,3,4-oxadiazole derivatives

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