Sulfur-based ferroelectric nematic liquid crystals

Y Arakawa, Q Ning, S Karthick, S Aya - Journal of Materials Chemistry …, 2024 - pubs.rsc.org
We report a structure–property relationship in sulfur-based chemical structures for
thermotropic ferroelectric nematic (NF) materials. We synthesized a wide variety of sulfur …

Twist-bend nematic liquid crystals based on thioether linkage

Y Arakawa, K Komatsu, H Tsuji - New Journal of Chemistry, 2019 - pubs.rsc.org
We developed twist-bend nematogens based on cyanobiphenyl dimers with thioether or
sulfur linkage, as opposed to the commonly used methylene and ether linkages. Based on …

Supramolecular liquid crystals from the dimer of L‐shaped molecules with tertiary amide end groups

Y Sawatari, Y Shimomura, M Takeuchi, R Iwai… - …, 2024 - Wiley Online Library
Supramolecular liquid crystals (SLCs) are attractive materials for fabricating devices with
new optoelectronic functions. Conventional SLCs are made from hydrogen‐bonded …

Thioether-linked liquid crystal dimers and trimers: The twist-bend nematic phase

Y Arakawa, K Komatsu, S Inui, H Tsuji - Journal of Molecular Structure, 2020 - Elsevier
Systematic synthesis of thioether-linked dimers and trimers was carried out to reveal
molecular designs for inducing mesophases and twist-bend nematic (N TB) phases. A five …

The effects of alkylthio chains on the properties of symmetric liquid crystal dimers

E Cruickshank, GJ Strachan, MM Majewska… - New Journal of …, 2023 - pubs.rsc.org
The synthesis and characterisation of four series of symmetric liquid crystal dimers
containing either alkylthio or alkyloxy terminal chains are reported. The (E, E)-[pentane-1, 5 …

Ether‐and Thioether‐Linked Naphthalene‐Based Liquid‐Crystal Dimers: Influence of Chalcogen Linkage and Mesogenic‐Arm Symmetry on the Incidence and …

Y Arakawa, Y Ishida, H Tsuji - Chemistry–A European Journal, 2020 - Wiley Online Library
The twist–bend nematic (NTB) phase with a heliconical nanostructure of the local director
generating symmetry breaking by achiral bent‐shaped molecules is a hot topic of current …

The design of liquid crystalline bistolane-based materials with extremely high birefringence

Y Arakawa, S Kang, H Tsuji, J Watanabe, G Konishi - RSC Advances, 2016 - pubs.rsc.org
We designed three new bistolanes with alkylsulfanyl groups. A symmetric derivative
contains short terminal methylsulfanyl groups (–SCH3) on both ends, while two asymmetric …

Methylene-and thioether-linked cyanobiphenyl-based liquid crystal dimers CB n SCB exhibiting room temperature twist-bend nematic phases and glasses

Y Arakawa, K Komatsu, T Shiba, H Tsuji - Materials Advances, 2021 - pubs.rsc.org
The twist-bend nematic (NTB) phase is a new heliconical liquid crystal (LC) phase that is
associated with spontaneous symmetry breaking for achiral bent LC molecules. Herein, we …

Lateral substituent effects on UV stability of high-birefringence liquid crystals with the diaryl-diacetylene core: DFT/TD-DFT study

R Chen, Z An, W Wang, X Chen, P Chen - Liquid Crystals, 2017 - Taylor & Francis
To study the effect of the lateral substituents on the UV stability of high birefringence liquid
crystals (LCs), computational chemistry was used to examine a series of high birefringence …

Phase behaviour of ester-linked cyanobiphenyl dimers and fluorinated analogues: the direct isotropic to twist-bend nematic phase transition

Y Arakawa, K Horita, K Igawa - Liquid Crystals, 2023 - Taylor & Francis
Typically, the twist-bend nematic (NTB) phase appears below the temperature of the
conventional nematic (N) phase. The direct formation of the NTB phase from the isotropic …