Microwave-assisted synthesis of highly water-soluble graphene towards electrical DNA sensor

Nanoscale ◽  
2010 ◽  
Vol 2 (12) ◽  
pp. 2692 ◽  
Author(s):  
Bong Gill Choi ◽  
HoSeok Park ◽  
Min Ho Yang ◽  
Young Mee Jung ◽  
Sang Yup Lee ◽  
...  
Keyword(s):  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
Dna Sensor ◽  
Microwave Assisted

scholarly journals One-Pot Microwave-Assisted Synthesis of Water-Soluble Pyran-2,4,5-triol Glucose Amine Schiff Base Derivative: XRD/HSA Interactions, Crystal Structure, Spectral, Thermal and a DFT/TD-DFT

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 117
Author(s):  
Yousef Hijji ◽  
Rajeesha Rajan ◽  
Hamdi Ben Yahia ◽  
Said Mansour ◽  
Abdelkader Zarrouk ◽  
...  
Keyword(s):  
Schiff Base ◽  
Molecular Orbital ◽  
Density Functional ◽  
Condensation Reaction ◽  
3D Structure ◽  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Td Dft

The(3R,4R,6R)-3-(((E)-2-hydroxybenzylidene)amino)-6-(hydroxymethyl)tetrahydro-2H-pyran-2,4,5-triol water-soluble Glucose amine Schiff base (GASB-1) product was made available by condensation of 2-hydroxybenzaldehyde with (3R,6R)-3-amino-6-(hydroxymethyl)-tetra-hydro-2H-pyran-2,4,5-triol under mono-mode microwave heating. A one-pot 5-minute microwave-assisted reaction was required to complete the condensation reaction with 90% yield and without having byproducts. The 3D structure of GASB-1 was solved from single crystal X-ray diffraction data and computed by DFT/6-311G(d,p). The Hirshfeld surface analysis (HSA), molecular electronic potential (MEP), Mulliken atomic charge (MAC), and natural population analysis (NPA) were performed. The IR and UV-Vis spectra were matched to their density functional theory (DFT) relatives and the thermal behavior was resolved in an open-room condition via thermogravimetry/Derivative thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC). The highest occupied molecular orbital/lowest unoccupied molecular orbital (HOMO/LUMO), density of state (DOS), and time-dependence TD-DFT computations were correlated to the experimental electron transfer in water and acrylonitrile solvents.

Water-soluble TRIS-terminated PAMAM dendrimers: microwave-assisted synthesis, characterization and Cu(ii) intradendrimer complexes

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60581-60595 ◽  
Author(s):  
Ali Serol Ertürk ◽  
Mustafa Ulvi Gürbüz ◽  
Metin Tülü ◽  
Abdürrezzak Emin Bozdoğan
Keyword(s):  
Drug Carriers ◽  
Pamam Dendrimers ◽  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
Potential Drug ◽  
Microwave Assisted

Microwave-assisted synthesis, characterization and Cu(ii) complexes of water-soluble TRIS-terminated PAMAM dendrimers as novel potential drug carriers and templates for nanomaterials.

Microwave‐assisted synthesis of water‐soluble styrylpyridine dye‐capped zinc oxide nanoparticles for antibacterial applications

2019 ◽  
Vol 67 (2) ◽  
pp. 316-323 ◽  
Author(s):  
Manjunath Giridhar ◽  
Halehatty S. Bhojya Naik ◽  
Chatnalli N. Sudhamani ◽  
Mustur C. Prabakara ◽  
Rajappa Kenchappa ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
Oxide Nanoparticles ◽  
Microwave Assisted

scholarly journals Microwave-Assisted Synthesis and Properties of Novel Hexaazatrinaphthylene Dendritic Scaffolds

Molecules ◽  
2020 ◽  
Vol 25 (21) ◽  
pp. 5038
Author(s):  
Daniel García Velázquez ◽  
Rafael Luque ◽  
Ángel Gutiérrez Ravelo
Keyword(s):  
Cyclic Voltammetry ◽  
Organic Synthesis ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
1H And 13C Nmr ◽  
Maldi Tof Ms ◽  
Microwave Assisted ◽  
Tof Ms

A novel family of water-soluble π-conjugated hexaazatrinaphthylenes-based dendritic architectures constructed by hexaketocyclohexane and 1,2,4,5-benzenetetramine units is developed in a microwave-assisted organic synthesis (MAOS) approach. The structures and purity of these compounds are verified by 1H and 13C-NMR, MALDI-TOF MS, UV-vis, elemental analysis, DSC, AFM, STM and cyclic voltammetry.

Targeted synthesis of a polypyridyl polyoxometalate coordination complex using microwave-assisted reaction conditions

2018 ◽  
Vol 74 (11) ◽  
pp. 1384-1389
Author(s):  
Jingjing Xu ◽  
Robert W. Gable ◽  
Chris Ritchie
Keyword(s):  
Aqueous Media ◽  
Organic Ligand ◽  
Solvent System ◽  
Crystallographic Analysis ◽  
Water Soluble ◽  
Coordination Complex ◽  
Microwave Assisted Synthesis ◽  
H Nmr ◽  
Microwave Assisted ◽  
The Stability

In this article, we build upon our recent efforts that have focused on demonstrating the value of microwave-assisted synthesis in polyoxometalate (POM) chemistry. Herein, we report for the first time a microwave-assisted approach that enabled the facile preparation and crystallization of a large POM-containing coordination complex. The judicious selection and reaction of a sparingly water-soluble transition-metal-substituted polyanion (TMSP) salt with the tritopic ligand 2,4,6-tris(4-pyridyl)-1,3,5-triazine (TPT) in a mixed solvent system under moderately forcing conditions yields Ba9[(BIIIWVI 11O39CoIII)3(C18H12N6)]·38H2O in moderate yield. Crystallographic analysis reveals significant intermolecular interactions between the organic ligand and neighbouring polyanions, predominantly C—H...O(water) in nature; meanwhile, the solvated regions of the crystal show significant disorder. To supplement the crystallographic study, combustion analysis, and IR and 1H NMR spectroscopic analyses were conducted, revealing good bulk purity and the stability of the complex in aqueous media.

scholarly journals Copper Phosphotungstate-Catalyzed Microwave-Assisted Synthesis of 5-Hydroxymethylfurfural In A Biphasic System

2021 ◽  
Author(s):  
Gabriel Abranches Dias Castro ◽  
Neide Paloma Gonçalves Lopes ◽  
Sergio Antonio Fernandes ◽  
Márcio José da Silva
Keyword(s):  
Transition Metal ◽  
Reaction Medium ◽  
Water Soluble ◽  
Biphasic System ◽  
Lewis Acidity ◽  
Microwave Assisted Synthesis ◽  
Water Molecules ◽  
Microwave Assisted ◽  
Keggin Heteropolyacids ◽  
Fructose Dehydration

Abstract In this paper, we have described a novel route to produce 5-hydroxymethylfurfural (HMF), a valuable platform-molecule obtained from biomass, using transition metal-exchanged Keggin heteropolyacid salts as catalysts, in microwave-assisted reactions carried out in a water-ethyl acetate biphasic system. To avoid the use of homogenous Brønsted acid catalysts, which are corrosive and difficult to be reused, we have exchanged the protons of the Keggin heteropolyacids by transition metal cations. These salts were evaluated in the fructose dehydration, being the Cu3/2PW12O40 the most active and selective catalyst, achieving 81 % of HMF yield, after 15 min reaction at 413 K under microwave irradiation (MWI). The effects of metal cation, anion, and heteropolyanion present in the catalyst were evaluated. The greatest efficiency of Cu3/2PW12O40 was attributed to its high Lewis acidity strength, which allows that it coordinate with water molecules, consequently generating H3O+ ions in the reaction medium. Even though the catalyst has been water-soluble, it was easily reused removing the extracting phase, and adding a new load of the substrate to the remaining aqueous phase. This way, it was successfully reused without loss activity.

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