scholarly journals Covalent organic frameworks based on Schiff-base chemistry: synthesis, properties and potential applications

2016 ◽  
Vol 45 (20) ◽  
pp. 5635-5671 ◽  
Author(s):  
José L. Segura ◽  
María J. Mancheño ◽  
Félix Zamora
Keyword(s):  
Schiff Base ◽  
Organic Molecules ◽  
Covalent Organic Frameworks ◽  
Condensation Reactions ◽  
Synthesis Properties ◽  
Potential Applications

Covalent organic-frameworks (COFs) are an emerging class of porous and ordered materials formed by condensation reactions of organic molecules.

scholarly journals Probing the chemical structure of monolayer covalent-organic frameworks grown via Schiff-base condensation reactions

2016 ◽  
Vol 52 (64) ◽  
pp. 9941-9944 ◽  
Author(s):  
Ya Hu ◽  
Niall Goodeal ◽  
Ying Chen ◽  
Alex M. Ganose ◽  
Robert G. Palgrave ◽  
...  
Keyword(s):  
Schiff Base ◽  
Chemical Structure ◽  
Covalent Organic Frameworks ◽  
Condensation Reactions

XPS and STM analysis shows that covalent links formed within a surface-supported Schiff-base 2D-COF consist of a mixture of imine and hemiaminal groups.

sp2 carbon-conjugated covalent organic frameworks: synthesis, properties, and applications

2021 ◽  
Vol 5 (7) ◽  
pp. 2931-2949
Author(s):  
Xinle Li
Keyword(s):  
Chemical Stability ◽  
Optoelectronic Properties ◽  
Covalent Organic Frameworks ◽  
High Crystallinity ◽  
Synthesis Properties

sp2 carbon-conjugated COFs (sp2c-COFs) featuring an unparalleled combination of sp2 carbon linkages, extended π-conjugation, high crystallinity, permanent porosity, unique optoelectronic properties, and extraordinary chemical stability, have garnered enormous attention recently.

The Design of Organic Gelators Based on a Family of Bis-Ureas

1999 ◽  
Vol 604 ◽  
Author(s):  
Rosa E. Meléndez ◽  
Andrew J. Carn ◽  
Kazuki Sada ◽  
Andrew D. Hamilton
Keyword(s):  
Thermodynamic Properties ◽  
Organic Solvents ◽  
Organic Molecules ◽  
Materials Science ◽  
Crystallographic Data ◽  
Porous Solids ◽  
X Ray ◽  
Molecule Structure ◽  
Structure Activity ◽  
Potential Applications

AbstractThe use of organic molecules as gelators in certain organic solvents has been the target of recent research in materials science. The types of structures formed in the gel matrix have potential applications as porous solids that can be used as absorbents or in catalysis. We will present and discuss the organogelation properties of a family of bis-ureas. Studies presented will include a molecule structure activity relationship, thermodynamic properties, comparison to x-ray crystallographic data and potential functionalization of the gels formed by this class of compounds

scholarly journals Schiff base metal complex as a potential therapeutic drug in medical science: A critical review

BIBECHANA ◽  
2021 ◽  
Vol 18 (1) ◽  
pp. 214-230
Author(s):  
Narendra Kumar Chaudhary ◽  
Biswash Guragain ◽  
Siyanand Kumar Chaudhary ◽  
Parashuram Mishra
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Base Metal ◽  
Medical Science ◽  
Emerging Diseases ◽  
Therapeutic Drug ◽  
Significant Research ◽  
Potential Applications ◽  
Global Threat ◽  
Schiff Base Metal Complexes

The discovery of new chemotherapeutics with novel bioactivities and functionalities to fight current emerging diseases has become the most significant research in pharmaceutical science. Schiff bases are versatile pharmacophores that can form complexes by chelation with metals of different oxidation states. Over a few decades of intensive research on metal-based drugs, Schiff base metal complexes have been considered as the active field of research in coordination chemistry, owing to their valuable applications in various fields of science. As therapeutic drugs, they have potential applications as antibiotic, antimicrobial, antitumor, antiviral, anti-inflammatory, analgesic, antifungal, and many more. There has been a global threat of drug resistance in medical science in recent years because most of the pathogenic organisms are developing the ability to deactivate drug substances. For this reason, it requires urgent attention from chemical and pharmaceutical scientists to address the severe challenges of multidrug resistance. This review summarizes the current developments in the last few decades' research on the chemotherapeutic activities of Schiff base metal complexes. BIBECHANA 18 (2021) 214-230

Room-Temperature Ceramic Nanocoating Using Nanosheet Deposition Technique

2013 ◽  
Vol 2013 (CICMT) ◽  
pp. 000014-000018 ◽  
Author(s):  
M. Osada ◽  
T. Sasaki
Keyword(s):  
Room Temperature ◽  
Organic Molecules ◽  
Structural Diversity ◽  
Layer By Layer ◽  
Precise Control ◽  
Langmuir Blodgett ◽  
Wide Range ◽  
Potential Applications ◽  
Layer Assembly ◽  
Selection Of

We present a novel procedure for ceramic nanocoating using oxide nanosheet as a building block. A variety of oxide nanosheets (such as Ti1−δO2, MnO2 and perovsites) were synthesized by delaminating appropriate layered precursors into their molecular single sheets. These nanosheets are exceptionally rich in both structural diversity and electronic properties, with potential applications including conductors, semiconductors, insulators, and ferromagnets. Another attractive aspect is that nanosheets can be organized into various nanoarchitectures by applying solution-based synthetic techniques involving electrostatic layer-by-layer assembly and Langmuir-Blodgett deposition. It is even possible to tailor superlattice assemblies, incorporating into the nanosheet galleries with a wide range of materials such as organic molecules, polymers, and inorganic/metal nanoparticles. Sophisticated functionalities or paper-like devices can be designed through the selection of nanosheets and combining materials, and precise control over their arrangement at the molecular scale.

scholarly journals Constructing covalent organic frameworks in waterviadynamic covalent bonding

IUCrJ ◽  
2016 ◽  
Vol 3 (6) ◽  
pp. 402-407 ◽  
Author(s):  
Jayshri Thote ◽  
Harshitha Barike Aiyappa ◽  
Raya Rahul Kumar ◽  
Sharath Kandambeth ◽  
Bishnu P. Biswal ◽  
...  
Keyword(s):  
Schiff Base ◽  
Covalent Bonding ◽  
Porous Polymers ◽  
Porous Structures ◽  
Covalent Organic Frameworks ◽  
Synthetic Route ◽  
Dynamic Covalent Chemistry ◽  
Water Based ◽  
First Time ◽  
Reaction In Water

The formation of keto-enamine based crystalline, porous polymers in water is investigated for the first time. Facile access to the Schiff base reaction in water has been exploited to synthesize stable porous structures using the principles of Dynamic Covalent Chemistry (DCC). Most credibly, the water-based Covalent Organic Frameworks (COFs) possess chemical as well as physical properties such as crystallinity, surface area and porosity, which is comparable to their solvothermal counterparts. The formation of COFs in water is further investigated by understanding the nature of the monomers formed using hydroxy and non-hydroxy analogues of the aldehyde. This synthetic route paves a new way to synthesize COFs using a viable, greener route by utilization of the DCC principles in conjunction with the keto–enol tautomerism to synthesize useful, stable and porous COFs in water.

Synthesis properties and structure of vanadium(IV) schiff base complex (VO)[Salphen] · CH3CN

Polyhedron ◽  
1995 ◽  
Vol 14 (2) ◽  
pp. 293-296 ◽  
Author(s):  
Xin Wang ◽  
Xiao Min Zhang ◽  
Hai Xin Liu
Keyword(s):  
Schiff Base ◽  
Schiff Base Complex ◽  
Base Complex ◽  
Synthesis Properties
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