Columnar self-assembly of bowl shaped fluorescent liquid crystals based on calix[4]arene with Schiff base units

2018 ◽  
Vol 42 (18) ◽  
pp. 15044-15051 ◽  
Author(s):  
Vinay S. Sharma ◽  
Anuj S. Sharma ◽  
Rajesh H. Vekariya
Keyword(s):  
Schiff Base ◽  
Liquid Crystals ◽  
Self Assembly ◽  
Rigid Core ◽  
New Family ◽  
Wide Range ◽  
Hexagonal Columnar ◽  
Base Units

A new family of bowl-shaped molecules with a calix[4]arene rigid core and appended on four-sides, that display a wide range of hexagonal columnar phases, has been synthesised and well characterized.

Self-assembled blue-light emitting materials for their liquid crystalline and OLED applications: from a simple molecular design to supramolecular materials

2020 ◽  
Vol 5 (10) ◽  
pp. 1691-1705
Author(s):  
Vinay S. Sharma ◽  
Anuj S. Sharma ◽  
Nikhil K. Agarwal ◽  
Priyanka A. Shah ◽  
Pranav S. Shrivastav
Keyword(s):  
Liquid Crystals ◽  
Blue Light ◽  
Self Assembly ◽  
Liquid Crystalline ◽  
Molecular Design ◽  
Supramolecular Materials ◽  
Light Emitting ◽  
New Family ◽  
Self Assembled

A new family of blue-light-emitting supramolecular bowl-shaped columnar hexagonal liquid crystals based on p-tert-butylcalix[4]arene and functionalized via chalconyl–ester-linked biphenyl amine derivatives form a self-assembly and their applications.

Influence of meta-extended rigid-core, complementary hydrogen bonding and flexible chain on polymorphism in Schiff-base liquid crystals: (4)MeOBD(3)AmBA:nOBAs

2019 ◽  
Vol 47 (4) ◽  
pp. 582-603
Author(s):  
AVSN Krishna Murthy ◽  
M. Srinivasulu ◽  
AVN Ashok Kumar ◽  
YV Rao ◽  
DM Potukuchi
Keyword(s):  
Hydrogen Bonding ◽  
Schiff Base ◽  
Liquid Crystals ◽  
Rigid Core ◽  
Flexible Chain ◽  
Base Liquid

A new family of NxOy pyridine-containing macrocycles: Synthesis and characterization of their Y(III), Ln(III), Zn(II), and Cd(II) coordination compounds

2004 ◽  
Vol 82 (3) ◽  
pp. 437-447 ◽  
Author(s):  
Carlos Lodeiro ◽  
Rufina Bastida ◽  
Emilia Bértolo ◽  
Adolfo Rodríguez
Keyword(s):  
Schiff Base ◽  
Macrocyclic Ligand ◽  
Macrocyclic Ligands ◽  
New Family ◽  
Pendant Arm ◽  
Starting Point ◽  
Wide Range ◽  
Imine Bond ◽  
Pendant Arms

Reaction between 2,6-bis(2-formylphenoxymethyl)pyridine and N,N-bis(3-aminopropyl)methylamine or tris(2-aminoethyl)amine has been used as the starting point for the synthesis of seven oxa-aza macrocyclic ligands, five of them never reported previously. They all feature different pendant arms, which provide a wide range of coordination possibilities. The Schiff base macrocycles L1 and L4 and their reduced ligands L2 and L5 are derived from 2,6-bis(2-formylphenoxymethyl)pyridine and tris(2-aminoethyl)amine or N,N-bis(3-aminopropyl)methylamine, respectively. The reaction of L1 with salicylaldehyde forms L3, which features an imine bond in the pendant arm. The ligand L5 has been the precursor for the pendant-armed L6 and L7, by alkylation of the free NH groups with methyl-imidazole or methyl-indole. By a template or a nontemplate approach, we have synthesized different mono- and dinuclear complexes with Y(III), Ln(III), Zn(II), and Cd(II) cations. Both the free macrocyclic ligands and their corresponding metal complexes have been characterized by microanalysis, IR, UV–vis, 1H and 13C NMR spectroscopy, FAB mass spectrometry, MS electrospray, and conductivity measurements.Key words: Schiff-base macrocycle, template synthesis, macrocyclic ligand complexes, lanthanide(III) complexes.

Self-Assembly of C3h and Cs Symmetric Keto-enamine Forms of Tris(N-salicyl-ideneanilines) into Columnar Phases: A New Family of Discotic Liquid Crystals

2004 ◽  
Vol 126 (21) ◽  
pp. 6506-6507 ◽  
Author(s):  
Channabasaveshwar V. Yelamaggad ◽  
Ammathnadu S. Achalkumar ◽  
Doddamane S. Shankar Rao ◽  
Subbarao Krishna Prasad
Keyword(s):  
Liquid Crystals ◽  
Self Assembly ◽  
Discotic Liquid Crystals ◽  
New Family

Columnar self-assembly, electrochemical and luminescence properties of basket-shaped liquid crystalline derivatives of Schiff-base-moulded p-tert-butyl-calix[4]arene

2020 ◽  
Vol 44 (47) ◽  
pp. 20610-20619
Author(s):  
Vinay S. Sharma ◽  
Anuj S. Sharma ◽  
Sheena J. B. Worthington ◽  
Priyanka A. Shah ◽  
Pranav S. Shrivastav
Keyword(s):  
Schiff Base ◽  
Blue Light ◽  
Self Assembly ◽  
Liquid Crystalline ◽  
Hexagonal Phase ◽  
Luminescence Properties ◽  
Light Emitting ◽  
Tert Butyl ◽  
New Family ◽  
Derivatives Of

A new family of blue-light emitting supramolecular basket-shaped liquid crystalline compounds based on p-tert-butyl-calix[4]arene core to form self-assembly and columnar hexagonal phase.

Bowl-shaped fluorescent liquid crystals derived from 4-tert butyl calix[4]arene and trans cinnamic acid derivatives

2019 ◽  
Vol 43 (39) ◽  
pp. 15575-15584 ◽  
Author(s):  
Vinay S. Sharma ◽  
Hemant Kumar Singh ◽  
Anuj S. Sharma ◽  
Akshara P. Shah ◽  
Priyanka A. Shah
Keyword(s):  
Liquid Crystals ◽  
Cinnamic Acid ◽  
Rigid Core ◽  
Cinnamic Acid Derivatives ◽  
Tert Butyl ◽  
New Family

A new family of bowl-shaped molecules with a calix[4]arene rigid core appended by four-side and two-side substitution with trans 4-n-alkoxy cinnamic acid has been synthesized and well characterized.

Porphyrin-functionalized coordination star polymers and their potential applications in photodynamic therapy

2019 ◽  
Vol 10 (45) ◽  
pp. 6116-6121 ◽  
Author(s):  
Tan Ji ◽  
Lei Xia ◽  
Wei Zheng ◽  
Guang-Qiang Yin ◽  
Tao Yue ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Self Assembly ◽  
Star Polymers ◽  
New Family ◽  
Potential Applications

We present a new family of porphyrin-functionalized coordination star polymers prepared through combination of coordination-driven self-assembly and post-assembly polymerization. Their self-assembly behaviour in water and potential for photodynamic therapy were demonstrated.

Factors Affecting Molecular Self-Assembly and Its Mechanism

2012 ◽  
Vol 9 (1) ◽  
pp. 43 ◽  
Author(s):  
Hueyling Tan
Keyword(s):  
Self Assembly ◽  
Building Blocks ◽  
Molecular Engineering ◽  
Molecular Structures ◽  
Polymer Science ◽  
New Approach ◽  
Factors Affecting ◽  
Dna Structures ◽  
Self Assembling ◽  
Wide Range

Molecular self-assembly is ubiquitous in nature and has emerged as a new approach to produce new materials in chemistry, engineering, nanotechnology, polymer science and materials. Molecular self-assembly has been attracting increasing interest from the scientific community in recent years due to its importance in understanding biology and a variety of diseases at the molecular level. In the last few years, considerable advances have been made in the use ofpeptides as building blocks to produce biological materials for wide range of applications, including fabricating novel supra-molecular structures and scaffolding for tissue repair. The study ofbiological self-assembly systems represents a significant advancement in molecular engineering and is a rapidly growing scientific and engineering field that crosses the boundaries ofexisting disciplines. Many self-assembling systems are rangefrom bi- andtri-block copolymers to DNA structures as well as simple and complex proteins andpeptides. The ultimate goal is to harness molecular self-assembly such that design andcontrol ofbottom-up processes is achieved thereby enabling exploitation of structures developed at the meso- and macro-scopic scale for the purposes oflife and non-life science applications. Such aspirations can be achievedthrough understanding thefundamental principles behind the selforganisation and self-synthesis processes exhibited by biological systems.

scholarly journals Polymer cyclization for the emergence of hierarchical nanostructures

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chaojian Chen ◽  
Manjesh Kumar Singh ◽  
Katrin Wunderlich ◽  
Sean Harvey ◽  
Colette J. Whitfield ◽  
...  
Keyword(s):  
Self Assembly ◽  
Three Dimensional ◽  
Hierarchical Structures ◽  
Structural Similarity ◽  
Vital Role ◽  
Nanomaterial Synthesis ◽  
Wide Range ◽  
Linear Poly ◽  
Polymer Folding ◽  
Dynamics Simulations

AbstractThe creation of synthetic polymer nanoobjects with well-defined hierarchical structures is important for a wide range of applications such as nanomaterial synthesis, catalysis, and therapeutics. Inspired by the programmability and precise three-dimensional architectures of biomolecules, here we demonstrate the strategy of fabricating controlled hierarchical structures through self-assembly of folded synthetic polymers. Linear poly(2-hydroxyethyl methacrylate) of different lengths are folded into cyclic polymers and their self-assembly into hierarchical structures is elucidated by various experimental techniques and molecular dynamics simulations. Based on their structural similarity, macrocyclic brush polymers with amphiphilic block side chains are synthesized, which can self-assemble into wormlike and higher-ordered structures. Our work points out the vital role of polymer folding in macromolecular self-assembly and establishes a versatile approach for constructing biomimetic hierarchical assemblies.

Design and self-assembly of new [2 × 2] grids constructed by lanthanide ions and a Schiff base

2020 ◽  
Vol 119 ◽  
pp. 108067 ◽  
Author(s):  
Gabriela Mendoza-Sarmiento ◽  
Fernando Igoa ◽  
Leopoldo Suescun ◽  
Julia Torres ◽  
Carlos Kremer
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
Lanthanide Ions
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