Synthesis and liquid crystalline studies of disc-shaped molecule on azo-bridged benzothiazole-phenyl ethers

Yeap, Guan‐Yeow; Rahim, Mursyida Abdul; Lin, Chien Min; Lin, Hong‐Cheu; Maeta, Nobuyuki; Ito, Masato

doi:10.1016/j.molliq.2016.08.110

Cited by 9 publications

(2 citation statements)

References 16 publications

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“…Upon cooling, the melting point of compound 28 a is higher compared to compound 28 b. However, it gradually elevates from compounds 28 b to 28 e. According to Yeap et al (2016), it has something to do with the spacer length [ 40 ]. As the length of spacer increase, the melting point continue to decrease from compounds 28 e to 28 f. Nonetheless, the clearing temperature of compound increase from compounds 28 b to 28 c and keep on descending as the length of alkyl chain increase.…”

Section: Structure–property Relationshipmentioning

confidence: 99%

“…Many flexible spacers link all homologues of compound 28 . This flexible spacer enables a conformational change so that a rod-shaped unit could align in a parallel arrangement resulting in a layered structure of a smectic phase [ 40 ]. Comp 28a 28b 28c 28d 28e 28f n 5 6 7 8 9 10 R

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Section: Structure–property Relationshipmentioning

confidence: 99%

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Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review

Razali

Jamain

2021

Polymers

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Liquid crystal is an intermediate phase between the crystalline solid and an isotropic liquid, a very common substance in our daily lives. Two major classes of liquid crystal are lyotropic, where a liquid crystal is dissolved in a specific solvent under a particular concentration and thermotropic, which can be observed under temperature difference. This review aims to understand how a structure of a certain azo compound might influence the liquid crystal properties. A few factors influence the formation of different liquid crystals: the length of the alkyl terminal chain, inter/intra-molecular interaction, presence of spacer, spacer length, polarization effects, odd-even effects, and the presence of an electron-withdrawing group or an electron-donating group. As final observations, we show the compound’s different factors, the other liquid crystal is exhibited, and the structure–property relationship is explained. Liquid crystal technology is an ideal system to be applied to products to maximize their use, especially in the electronic and medical areas.

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Section: Structure–property Relationshipmentioning

confidence: 99%

…”

Section: Structure–property Relationshipmentioning

confidence: 99%

Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review

Razali

Jamain

2021

Polymers

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A UV‐Responsive Multifunctional Photoelectric Device Based on Discotic Columnar Nanostructures and Molecular Motors

et al. 2019

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Orientation control of ordered materials would not only produce new physical phenomenon but also facilitate the development of fancy devices. Discotic liquid crystals (DLCs) form 1D charge transport pathway by self‐organizing into columnar nanostructures via π–π stacking. However, controlling the electrical properties in such nanostructures with some direct and instant way is a formidable task for their high viscosity and insensitivity to external stimuli. Herein, the arbitrary control over electrical conductivity of such columnar nanostructures is achieved with UV light by incorporating DLCs with molecular motors. Highly ordered DLC microstripe arrays are generated on desired substrate through a capillary bridge dewetting strategy. The conductivity of the microstripes could be continuously modulated by 365 nm light due to the influence of molecular motion under UV irradiation on the electron orbital overlap of columnar nanostructures. This is so because the disorder degree of the DLC molecules is associated with the intensity of UV light and the doping concentration of molecular motors. Moreover, the device shows memory effect and reversible conductivity change. The DLC microstripe arrays are very promising for the applications in UV detectors, memory devices, optical switches, and so on.

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