Induction and Structural Control of Chiral Nematic Phases by the Use of Photoresponsive Tris(β-diketonato) Co(III) and Ru(III) Complexes

2008 ◽  
Vol 112 (32) ◽  
pp. 9677-9683 ◽  
Author(s):  
Jun Yoshida ◽  
Hisako Sato ◽  
Naomi Hoshino ◽  
Akihiko Yamagishi
Keyword(s):  
Structural Control ◽  
Chiral Nematic ◽  
Nematic Phases

scholarly journals Reversible Broad-Spectrum Control of Selective Reflections of Chiral Nematic Phases by Closed-/Open-Type Axially Chiral Azo Dopants

ChemistryOpen ◽  
2017 ◽  
Vol 6 (6) ◽  
pp. 684-684 ◽  
Author(s):  
Hiroya Nishikawa ◽  
Daigou Mochizuki ◽  
Hiroki Higuchi ◽  
Yasushi Okumura ◽  
Hirotsugu Kikuchi
Keyword(s):  
Broad Spectrum ◽  
Open Type ◽  
Chiral Nematic ◽  
Axially Chiral ◽  
Spectrum Control ◽  
Nematic Phases

scholarly journals Thermotropic and lyotropic behaviour of new liquid-crystalline materials with different hydrophilic groups: synthesis and mesomorphic properties

2013 ◽  
Vol 9 ◽  
pp. 425-436 ◽  
Author(s):  
Alexej Bubnov ◽  
Miroslav Kašpar ◽  
Věra Hamplová ◽  
Ute Dawin ◽  
Frank Giesselmann
Keyword(s):  
Liquid Crystalline ◽  
Molecular Structures ◽  
Scanning Calorimetry ◽  
Crystalline Materials ◽  
Smectic Phases ◽  
Chiral Nematic ◽  
Nematic Phases ◽  
Liquid Crystalline Materials ◽  
Hydroxy Groups ◽  
Mesomorphic Properties

Several new calamitic liquid-crystalline (LC) materials with flexible hydrophilic chains, namely either hydroxy groups or ethylene glycol units, or both types together, have been synthesized in order to look for new functional LC materials exhibiting both, thermotropic and lyotropic behaviour. Such materials are of high potential interest for challenging issues such as the self-organization of carbon nanotubes or various nanoparticles. Thermotropic mesomorphic properties have been studied by using polarizing optical microscopy, differential scanning calorimetry and X-ray scattering. Four of these nonchiral and chiral materials exhibit nematic and chiral nematic phases, respectively. For some molecular structures, smectic phases have also been detected. A contact sample of one of the prepared compounds with diethylene glycol clearly shows the lyotropic behaviour; namely a lamellar phase was observed. The relationship between the molecular structure and mesomorphic properties of these new LCs with hydrophilic chains is discussed.

scholarly journals Front Cover: Reversible Broad-Spectrum Control of Selective Reflections of Chiral Nematic Phases by Closed-/Open-Type Axially Chiral Azo Dopants (ChemistryOpen 6/2017)

ChemistryOpen ◽  
2017 ◽  
Vol 6 (6) ◽  
pp. 683-683
Author(s):  
Hiroya Nishikawa ◽  
Daigou Mochizuki ◽  
Hiroki Higuchi ◽  
Yasushi Okumura ◽  
Hirotsugu Kikuchi
Keyword(s):  
Broad Spectrum ◽  
Front Cover ◽  
Open Type ◽  
Chiral Nematic ◽  
Axially Chiral ◽  
Spectrum Control ◽  
Nematic Phases

Novel atropoisomeric binaphthyl-containing liquid crystalline copolymers forming chiral nematic phases

1997 ◽  
Vol 22 (4) ◽  
pp. 451-457 ◽  
Author(s):  
V. P. SHIBAEV ◽  
H. J. DEUssEN ◽  
A. YU. BOBROVSKY ◽  
P. V. SHIBAEV ◽  
N. I. BOIKO ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Chiral Nematic ◽  
Nematic Phases

Nano-to-meso structure of cellulose nanocrystal phases in ethylene–glycol–water mixtures

Soft Matter ◽  
2020 ◽  
Vol 16 (36) ◽  
pp. 8444-8452
Author(s):  
David Attia ◽  
Neta Cohen ◽  
Guy Ochbaum ◽  
Yael Levi-Kalisman ◽  
Ronit Bitton ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Cellulose Nanocrystals ◽  
Liquid Mixture ◽  
Binary Liquid Mixture ◽  
Cellulose Nanocrystal ◽  
Binary Liquid ◽  
Chiral Nematic ◽  
Kinetic Arrest ◽  
Nematic Phases

Vicinal water delays kinetic arrest and enables the assembly of cellulose nanocrystals (CNCs) into chiral nematic phases in a binary liquid mixture of EG–water.

scholarly journals Right-handed double-helix ultrashort DNA yields chiral nematic phases with both right- and left-handed director twist

2010 ◽  
Vol 107 (41) ◽  
pp. 17497-17502 ◽  
Author(s):  
Giuliano Zanchetta ◽  
Fabio Giavazzi ◽  
Michi Nakata ◽  
Marco Buscaglia ◽  
Roberto Cerbino ◽  
...  
Keyword(s):  
Double Helix ◽  
Left Handed ◽  
Chiral Nematic ◽  
Nematic Phases

scholarly journals Reversible Broad-Spectrum Control of Selective Reflections of Chiral Nematic Phases by Closed-/Open-Type Axially Chiral Azo Dopants

ChemistryOpen ◽  
2017 ◽  
Vol 6 (6) ◽  
pp. 710-720 ◽  
Author(s):  
Hiroya Nishikawa ◽  
Daigou Mochizuki ◽  
Hiroki Higuchi ◽  
Yasushi Okumura ◽  
Hirotsugu Kikuchi
Keyword(s):  
Broad Spectrum ◽  
Open Type ◽  
Chiral Nematic ◽  
Axially Chiral ◽  
Spectrum Control ◽  
Nematic Phases

Effects of auxiliary ligands of Pd(ii) dimers on induction of chiral nematic phases: chirality inversion and the photo-responsive structural change

2015 ◽  
Vol 44 (7) ◽  
pp. 3209-3215 ◽  
Author(s):  
Kenji Tamura ◽  
Jun Yoshida ◽  
Masahiro Taniguchi ◽  
Takafumi Kitazawa ◽  
Akihiko Yamagishi ◽  
...  
Keyword(s):  
Structural Change ◽  
Liquid Crystals ◽  
Cd Spectrum ◽  
Chiral Nematic ◽  
Axially Chiral ◽  
Nematic Phases

An axially chiral Pd(ii) dimer changed its CD spectrum reversibly under irradiation at either 350 nm or 460 nm when it was doped in liquid crystals.

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