scholarly journals Functional small-molecules & polymers containing PC and AsC bonds as hybrid π-conjugated materials

2017 ◽  
Vol 53 (6) ◽  
pp. 1120-1123 ◽  
Author(s):  
Daniel Morales Salazar ◽  
Edgar Mijangos ◽  
Sonja Pullen ◽  
Ming Gao ◽  
Andreas Orthaber
Keyword(s):  
Small Molecules ◽  
Functional Materials ◽  
Conjugated Materials ◽  
Optoelectronic Applications

Switch the pnictogen: functional materials containing PC and AsC fragments for optoelectronic applications. An example of a polymer containing arsaalkenes is presented.

scholarly journals Boron(iii) β-diketonate-based small molecules for functional non-fullerene polymer solar cells and organic resistive memory devices

2020 ◽  
Vol 11 (42) ◽  
pp. 11601-11612
Author(s):  
Panpan Li ◽  
Quanbin Liang ◽  
Eugene Yau-Hin Hong ◽  
Chin-Yiu Chan ◽  
Yat-Hin Cheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Polymer Solar Cells ◽  
Functional Materials ◽  
Memory Devices ◽  
Resistive Memory

Boron(iii) β-diketonates have been demonstrated to serve as multi-functional materials in NFA-based OPVs and organic resistive memories.

scholarly journals Recent Advances in One-Pot Modular Synthesis of 2-Quinolones

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5450
Author(s):  
Wan Pyo Hong ◽  
Inji Shin ◽  
Hee Nam Lim
Keyword(s):  
Reaction Mechanism ◽  
Small Molecules ◽  
Functional Materials ◽  
Synthetic Methods ◽  
Microwave Irradiation Method ◽  
One Pot ◽  
Bond Forming ◽  
Chemical Structures ◽  
The Core ◽  
Modular Synthesis

It is known that 2-quinolones are broadly applicable chemical structures in medicinal and agrochemical research as well as various functional materials. A number of current publications about their synthesis and their applications emphasize the importance of these small molecules. The early synthetic chemistry originated from the same principle of the classical Friedländer and Knorr procedures for the preparation of quinolines. The analogous processes were developed by applying new synthetic tools such as novel catalysts, the microwave irradiation method, etc., whereas recent innovations in new bond forming reactions have allowed for novel strategies to construct the core structures of 2-quinolones beyond the bond disconnections based on two classical reactions. Over the last few decades, some reviews on structure-based, catalyst-based, and bioactivity-based studies have been released. In this focused review, we extensively surveyed recent examples of one-pot reactions, particularly in view of modular approaches. Thus, the contents are categorized as three major sections (two-, three-, and four-component reactions) according to the number of reagents that ultimately compose atoms of the core structures of 2-quinolones. The collected synthetic methods are discussed from the perspectives of strategy, efficiency, selectivity, and reaction mechanism.

scholarly journals Front Cover: The Synthesis and Optoelectronic Applications for Tellurophene‐Based Small Molecules and Polymers (ChemPhysChem 20/2019)

ChemPhysChem ◽  
2019 ◽  
Vol 20 (20) ◽  
pp. 2577-2577
Author(s):  
Xiaoxi Wu ◽  
Lei Lv ◽  
Lifang Hu ◽  
Qinqin Shi ◽  
Aidong Peng ◽  
...  
Keyword(s):  
Small Molecules ◽  
Front Cover ◽  
Optoelectronic Applications

Rational design and facile preparation of maleimide-based functional materials for imaging and optoelectronic applications

2019 ◽  
Vol 3 (4) ◽  
pp. 571-578 ◽  
Author(s):  
Ze Yang ◽  
Yun Guo ◽  
Shu-Lun Ai ◽  
Su-Xiao Wang ◽  
Jin-Zhi Zhang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Energy Conversion ◽  
Tartaric Acid ◽  
Rational Design ◽  
Functional Materials ◽  
Facile Preparation ◽  
Optoelectronic Applications

A facile approach for producing amine modified maleimides by simple heat treatment of tartaric acid with amides provides a means to expand the applications of functional maleimide in imaging and energy conversion.

scholarly journals Elastic Organic Crystals of π-Conjugated Molecules: New Concept for Materials Chemistry

Symmetry ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2022
Author(s):  
Shotaro Hayashi
Keyword(s):  
Small Molecules ◽  
Single Crystals ◽  
State Of The Art ◽  
Functional Materials ◽  
Molecular Structures ◽  
Organic Crystal ◽  
Organic Crystals ◽  
Materials Chemistry ◽  
Conjugated Molecules ◽  
Recent Emergence

It is generally believed that organic single crystals composed of a densely packed arrangement of anisotropic, organic small molecules are less useful as functional materials due to their mechanically inflexible and brittle nature, compared to polymers bearing flexible chains and thereby exhibiting viscoelasticity. Nevertheless, organic crystals have attracted much attention because of their tunable optoelectronic properties and a variety of elegant crystal habits and unique ordered or disordered molecular packings arising from the anisotropic molecular structures. However, the recent emergence of flexible organic crystal materials showing plasticity and elasticity has considerably changed the concept of organic single crystals. In this review, the author summarizes the state-of-the-art development of flexible organic crystal materials, especially functional elastic organic crystals which are expected to provide a foothold for the next generation of organic crystal materials.

Recent developments in pyrazine functionalized π-conjugated materials for optoelectronic applications

2020 ◽  
Vol 8 (2) ◽  
pp. 352-379 ◽  
Author(s):  
Puttavva Meti ◽  
Hyung-Ha Park ◽  
Young-Dae Gong
Keyword(s):  
Global Warming ◽  
Conjugated Materials ◽  
Recent Developments ◽  
Optoelectronic Applications ◽  
Alternative Sources

The serious threat of global warming has made it necessary to seek alternative sources of energy.

scholarly journals Fabrication of supramolecular cyclodextrin–fullerene nonwovens by electrospinning

2019 ◽  
Vol 15 ◽  
pp. 89-95 ◽  
Author(s):  
Hiroaki Yoshida ◽  
Ken Kikuta ◽  
Toshiyuki Kida
Keyword(s):  
Small Molecules ◽  
Materials Science ◽  
Functional Materials ◽  
Molecular State ◽  
Proof Of Concept ◽  
Science And Engineering ◽  
New Class ◽  
Materials Science And Engineering ◽  
Fiber Materials ◽  
Opening Up

Direct electrospinning of small molecules has great potential to fabricate a new class of fiber materials because this approach realizes the creation of various functional materials through the numerous molecular combinations. In this paper, we demonstrate a proof-of-concept to fabricate supramolecular fiber materials composed of cyclodextrin (CD)–fullerene inclusion complexes by electrospinning. Similar to the molecular state of fullerenes in solution, the resulting fibers include molecularly-dispersed fullerenes. We believe such a concept could be expanded to diverse host–guest complexes, opening up supramolecular solid materials science and engineering.

Self-Assembled and Langmuir-Blodgett Organic Thin Films As Functional Materials

MRS Bulletin ◽  
1992 ◽  
Vol 17 (11) ◽  
pp. 61-66 ◽  
Author(s):  
Deborah H. Charych ◽  
Mark D. Bednarski
Keyword(s):  
Thin Films ◽  
Signal Transduction ◽  
Molecular Recognition ◽  
Small Molecules ◽  
Aqueous Media ◽  
Functional Materials ◽  
Organic Thin Films ◽  
Langmuir Blodgett ◽  
Hydrophobic Moiety ◽  
The Common

Biological membranes provide numerous functions for the survival of cells, ranging from molecular recognition to signal transduction and energy conversion. The spacial organization of proteins, enzymes, glycoproteins, and glycolipids in the membrane is provided by the lipid bilayer matrix. The lipids of the membrane are small molecules which have the common characteristic of having both a hydrophilic and a hydrophobic moiety. In aqueous media, they are entropically driven to self-organize in bimolecular sheets (see the article by Alper in this issue). These sheets, in addition to providing a fluid matrix for a wide variety of biomolecules, also serve to impede the flow of molecules across the membrane.

Simulation of Small Molecules Permeation Through Polymer Matrix

2016 ◽  
Vol 04 (04) ◽  
pp. 1640018
Author(s):  
Alexandre Fleury ◽  
Xu Li ◽  
Armand Soldera
Keyword(s):  
Experimental Data ◽  
Small Molecules ◽  
New Technologies ◽  
Amorphous Polymer ◽  
Polymer System ◽  
Functional Materials ◽  
Computer Performance ◽  
Specific Protocol ◽  
Specific Permeability ◽  
The Subject

New technologies deeply depend on the ability of chemists to synthesize new functional materials. However, this synthetic step requires great efforts. Moreover, it is very likely that the ensuing compound does not fit the expected properties. With the advent of simulation, associated with the increase in computer performance and efficiency of codes, a screening of the best potential candidates to be synthesized becomes available. Accordingly, getting a polymer with a specific permeability, and also understanding the molecular reasons underlying this process, are some of the assets of molecular simulation. Nevertheless, representation of a material from a molecular perspective is not straightforward. A specific protocol must be established. It takes into account the fact that calculations are carried out on very tiny systems. An accurate depiction and perpetual validations confronting simulated results with experimental data make the protocol relevant. The computation of the penetrants’ diffusion coefficient and solubility is then introduced, in order to reveal the simulation of the permeation of a small molecule through an amorphous polymer system. The paper concludes with the most recent studies on the subject.

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