Supramolecular dendrimers based on the self-assembly of carbazole-derived dendrons and triazine rings: liquid crystal, photophysical and electrochemical properties

2013 ◽  
Vol 1 (44) ◽  
pp. 7321 ◽  
Author(s):  
Susana Castelar ◽  
Joaquín Barberá ◽  
Mercedes Marcos ◽  
Pilar Romero ◽  
José-Luis Serrano ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Electrochemical Properties ◽  
Self Assembly ◽  
The Self ◽  
Supramolecular Dendrimers

scholarly journals Adjacent functional group effects on the assembly of columnar liquid crystals

2020 ◽  
Vol 98 (7) ◽  
pp. 379-385
Author(s):  
Carson O. Zellman ◽  
Danielle Vu ◽  
Vance E. Williams
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Self Assembly ◽  
Room Temperature ◽  
Functional Group ◽  
The Self ◽  
Clearing Temperature ◽  
Crystal Phases ◽  
Potential Strategy ◽  
The Impact

Although the impact of individual functional groups on the self-assembly of columnar liquid crystal phases has been widely studied, the effect of varying multiple substituents has received much less attention. Herein, we report a series of dibenzo[a,c]phenazines containing an alcohol or ether adjacent to an electron-withdrawing ester or acid. With one exception, these difunctional mesogens form columnar phases. The phase behavior appeared to be dominated by the electron-withdrawing substituent; transition temperatures were similar to derivatives with these groups in isolation. In most instances, the addition of an electron-donating group ortho to an ester or acid suppressed the melting temperature and elevated the clearing temperature, leading to broader liquid crystal thermal ranges. This effect was more pronounced for derivatives functionalized with longer chain hexyloxy groups. These results suggest a potential strategy for controlling the phase ranges of columnar liquid crystals and achieving room temperature mesophases.

scholarly journals Thermodynamics of the self-assembly of non-ionic chromonic molecules using atomistic simulations. The case of TP6EO2M in aqueous solution

Soft Matter ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 680-691 ◽  
Author(s):  
Anna Akinshina ◽  
Martin Walker ◽  
Mark R. Wilson ◽  
Gordon J. T. Tiddy ◽  
Andrew J. Masters ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Aqueous Solution ◽  
Liquid Crystal ◽  
Molecular Dynamics Simulations ◽  
Self Assembly ◽  
The Self ◽  
Atomistic Simulations ◽  
Aggregation Behaviour ◽  
Dynamics Simulations

Molecular dynamics simulations of non-ionic triphenylene-based chromonic liquid crystal molecules demonstrate self-assembly of the molecules into stacks and “quasi-isodesmic” aggregation behaviour.

The self-assembly and liquid crystal formation of d(GpGpApGpG)

Biopolymers ◽  
1997 ◽  
Vol 42 (5) ◽  
pp. 561-574 ◽  
Author(s):  
Giovanni Gottarelli ◽  
Gloria Proni ◽  
Gian Piero Spada ◽  
Stefania Bonazzi ◽  
Anna Garbesi ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Self Assembly ◽  
The Self ◽  
Crystal Formation

Hybrid liquid crystal polymers from the self-assembly of poly(vinylpyridine) and polyoxometalates via multiple non-covalent bonds

RSC Advances ◽  
2014 ◽  
Vol 4 (100) ◽  
pp. 56998-57008 ◽  
Author(s):  
Jingfang Li ◽  
Xiaopeng Ou ◽  
Savannah Sims ◽  
Wen Li ◽  
Lixin Wu
Keyword(s):  
Liquid Crystal ◽  
Self Assembly ◽  
The Self ◽  
Liquid Crystal Polymers ◽  
Covalent Bonds

A Comparative Study of the Phase Separation of a Nematic Liquid Crystal in the Self-assembling Drying Protein Drops

MRS Advances ◽  
2019 ◽  
Vol 4 (22) ◽  
pp. 1309-1314 ◽  
Author(s):  
Anusuya Pal ◽  
Amalesh Gope ◽  
Germano S. Iannacchione
Keyword(s):  
Liquid Crystal ◽  
Phase Separation ◽  
Self Assembly ◽  
Intensity Variation ◽  
The Self ◽  
Drying Process ◽  
Bright Region ◽  
Self Assembling ◽  
Initial Aqueous Solution ◽  
Significant Difference

ABSTRACTThe drying process, self-assembly of the proteins and the phase separation of a thermotropic liquid crystal (LC) from an initial aqueous solution represent a rich area of study. A focus of this work is to compare the behavior of two different proteins, bovine serum albumin [BSA] and lysozyme [Lys] in the ternary system through optical microscopy. During the drying process, the intensity profile shows three regimes in the presence of LC whereas no intensity variation is observed in its absence in both protein drops. The striking outcome is the presence of an umbilical defect of [+1] strength in every domain near the edge of BSA drop, whereas, each domain has a central dark region surrounded by a bright region in the dried Lys drop. Finally, the crack spacing in the dried Lys drop is reduced in the presence of LC whereas, no significant difference is found in the dried BSA drop.

Magnetic and electrochemical properties of corner-like and grid-like complexes resulting from the self-assembly of two structurally related bis(hydrazones) and iron (ii)

2021 ◽  
pp. 120514
Author(s):  
Norha E. Sánchez-Rodríguez ◽  
Jorge A. Castaño ◽  
Deisy Giraldo-Dávila ◽  
Jesús A.Tabares ◽  
Marianny Y. Combariza ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Self Assembly ◽  
The Self
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