Translational and rotational phase ordering of symmetric dimer mesogens: Molecular rigidity effect

Ramakrishna, D. S.; Jose, T. Jaison; Praveen, P. Lakshmi

doi:10.1016/j.molstruc.2021.130336

Cited by 11 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[27] In columnar type mesogens, the self-assembly is primarily driven by the molecular arrangement in which the molecules stack on top of each other, forming columns with a circular cross-section phase. [28] To gain a better understanding of the mesophase transformation, we conducted experiments to capture the phase sequence of selected compounds, namely CTGF 1 and CTGF 3 , which have different alkoxy side chains of shorter and longer lengths, respectively. These experiments were performed at different temperatures during the cooling cycle.…”

Section: Pom and Thermal Behaviormentioning

confidence: 99%

Self‐Assembled Cyclotriguaiacyclene‐Integrated Supramolecular Systems for Liquid Crystal and Self‐Assembly Behavior

Panchal,

Sharma,

Mali

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

An advanced tri‐substituted supramolecular material was synthesized via conversion of cyclotriveratrylene to cyclotriguaiacyclene with further esterification reaction with fluorescein unit embedded with side‐arms. All four luminescent materials exhibited columnar hexagonal type mesophase on both heating and cooling conditions. The materials with hexadecyloxy and octadecyloxy tail group exhibit liquid crystalline behavior at room temperature indicating the presence of a mesophase even under ambient conditions. By combining polarizing optical microscopy, differential scanning calorimetry, and high‐temperature X‐Ray diffraction techniques to understanding the optical, thermal, and molecular packing behavior of the compounds in the liquid crystalline state. The cyclotriguaiacyclene core with high fluorescent nature displayed columnar hexagonal type self‐assembly at room temperature. All four supramolecular mesogens showed higher thermal stability of mesophase. The computational study provides the importance of the electronic nature of the compounds.

show abstract

Section: Pom and Thermal Behaviormentioning

confidence: 99%

Self‐Assembled Cyclotriguaiacyclene‐Integrated Supramolecular Systems for Liquid Crystal and Self‐Assembly Behavior

Panchal,

Sharma,

Mali

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…40 In the columnar type mesophase, the self-assembly formation is mainly due to the strong π-π interactions between the aromatic cores to form columns with a circular cross-section phase in functionalized molecular systems. 41 Further, we captured the phase sequence of selected compound CTGC 4 with a tetradecyloxy chain (-OC 14 H 29 ) at different temperatures in the cooling cycle. The phase sequence of compound CTGC 4 was captured from the isotropic liquid state to solid state at 24.0 °C (Fig.…”

Section: Msde Papermentioning

confidence: 99%

Cyclotriguaiacyclene-functionalized trans-cinnamic acid with alkyl arms: an efficient supramolecular system for solar cell and liquid crystalline applications

Mali

Rathod

Suthar

et al. 2023

Mol. Syst. Des. Eng.

View full text Add to dashboard Cite

show abstract

“…Structural design and practicality are crucial facets in the engineering of LC molecules for managing the physical properties and constancy of mesophases [ 4 ]. The preliminary awareness of LC dimers [ 5 – 7 ] arose from their prospective use as model molecules that help in the understanding of complex polymeric systems. However, these dimers attained noteworthy attention as they exhibit fairly dissimilar behaviour to usual small molar mass LCs.…”

Section: Introductionmentioning

confidence: 99%

UV light sensing and switching applications of dimeric smectic liquid crystals: comparative calculations

Das

Jose²,

Ghosh

et al. 2022

Eur. Phys. J. E

Self Cite

View full text Add to dashboard Cite

Two dimeric smectic molecules, namely α - ω -bis (4- n -pentylanilinebenzylidene-4′-oxy) butane (PABO4) and α - ω -bis (4- n -pentylanilinebenzylidene-4′-oxy) pentane (PABO5), have been considered for sensing UV light. The compounds’ optimization process has been performed through B3LYP hybrid functional together with basis set 6-31+G (d) using the input parameters from the crystallographer. The absorption of UV analysis of these compounds has been estimated, and the configuration interaction single-level method has been used to analyse the electronic transition features coupled with the calculation of excited states using semi-empirical Hamiltonian ZINDO. The CNDO/S, INDO/S together with CI approaches, has been utilized for comparative evaluation. The spectral-associated parameters have been summarized. The molecules discussed in this manuscript present several features, viz. the absorption range of the molecules that is sensitive to different wavelengths, the usage in flexible devices, offering the prospect for UV sensors. Further, the switching applications have been explored based on the oscillator strength data in various regions of wavelengths. Graphical abstract

show abstract

Translational and rotational phase ordering of symmetric dimer mesogens: Molecular rigidity effect

Cited by 11 publications

References 31 publications

Self‐Assembled Cyclotriguaiacyclene‐Integrated Supramolecular Systems for Liquid Crystal and Self‐Assembly Behavior

Self‐Assembled Cyclotriguaiacyclene‐Integrated Supramolecular Systems for Liquid Crystal and Self‐Assembly Behavior

Cyclotriguaiacyclene-functionalized trans-cinnamic acid with alkyl arms: an efficient supramolecular system for solar cell and liquid crystalline applications

UV light sensing and switching applications of dimeric smectic liquid crystals: comparative calculations

Contact Info

Product

Resources

About