scholarly journals A supramolecular radical cation: folding-enhanced electrostatic effect for promoting radical-mediated oxidation

2018 ◽  
Vol 9 (22) ◽  
pp. 5015-5020 ◽  
Author(s):  
Bohan Tang ◽  
Wan-Lu Li ◽  
Yang Jiao ◽  
Jun-Bo Lu ◽  
Jiang-Fei Xu ◽  
...  
Keyword(s):  
Radical Cation ◽  
Fenton Oxidation ◽  
Electrostatic Effect ◽  
Mediated Oxidation

A supramolecular strategy to fabricate a highly activated radical cation, leading to over 100 times acceleration of radical-mediated Fenton oxidation.

scholarly journals Mechanistic Studies of Ce(IV)-Mediated Oxidation of β-Dicarbonyls:  Solvent-Dependent Behavior of Radical Cation Intermediates

2007 ◽  
Vol 72 (15) ◽  
pp. 5486-5492 ◽  
Author(s):  
Jingliang Jiao ◽  
Yang Zhang ◽  
James J. Devery ◽  
Luna Xu ◽  
Jennifer Deng ◽  
...  
Keyword(s):  
Radical Cation ◽  
Mechanistic Studies ◽  
Dependent Behavior ◽  
Mediated Oxidation

A study of the Fenton-mediated oxidation of methylene blue–cucurbit[n]uril complexes

2015 ◽  
Vol 14 (4) ◽  
pp. 686-692 ◽  
Author(s):  
Tomás Fuenzalida ◽  
Denis Fuentealba
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Fenton Oxidation ◽  
Uva Irradiation ◽  
Mediated Oxidation

Methylene blue is protected from Fenton oxidation when encapsulated into cucurbit[7]uril or cucurbit[8]uril under dark or UVA irradiation. However, visible light enhances the degradation only when cucurbit[7]uril is present.

Peculiarities of the synthesis, structure and properties of ET radical cation salts prepared in the presence of the rare-earth metal complex anions

2004 ◽  
Vol 114 ◽  
pp. 527-528 ◽  
Author(s):  
N. D. Kushch ◽  
A. V. Kazakova ◽  
L. I. Buravov ◽  
A. N. Chekhlov ◽  
E. B. Yagubskii
Keyword(s):  
Rare Earth ◽  
Metal Complex ◽  
Radical Cation ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Structure And Properties ◽  
Rare Earth Metal Complex ◽  
Radical Cation Salts ◽  
Complex Anions ◽  
The Rare Earth

The electronic properties of a radical cation salt of bis-ethylenedioxodibenzofuran, [(bEDODBF)5 (AsF6)2(CH2Cl 2)0.2]

1988 ◽  
Vol 49 (4) ◽  
pp. 667-673 ◽  
Author(s):  
S. Söderholm ◽  
J. Hellberg ◽  
G. Ahlgren ◽  
M. Krebs ◽  
J.U. von Schütz ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Radical Cation ◽  
Radical Cation Salt

Synthesis of a Condensed Phenoxazine Dimer and Its Radical Cation Salt

Synfacts ◽  
2020 ◽  
Vol 16 (12) ◽  
pp. 1421
Keyword(s):  
Radical Cation ◽  
Radical Cation Salt

FENTON AND PHOTO-FENTON OXIDATION OF SULFIDIC SPENT CAUSTIC: A COMPARATIVE STUDY BASED ON STATISTICAL ANALYSIS

2014 ◽  
Vol 13 (3) ◽  
pp. 531-538 ◽  
Author(s):  
Mohd Ariffin Abu Hassan ◽  
Sharifah Hanis Yasmin Sayid Abdullah ◽  
Zainura Zainon Noor ◽  
Siti Fadilah Md Noor ◽  
Azmi Aris
Keyword(s):  
Statistical Analysis ◽  
Comparative Study ◽  
Fenton Oxidation ◽  
Spent Caustic

Effects of Ultrasounds on Neat nitrobenzene

2019 ◽  
Vol 70 (8) ◽  
pp. 3085-3088
Author(s):  
Carmen Eugenia Stavarache ◽  
Yasuaki Maeda ◽  
Mircea Vinatoru
Keyword(s):  
Nitro Group ◽  
Radical Cation ◽  
Reaction Mechanisms ◽  
Diphenyl Ether ◽  
Argon Atmosphere ◽  
Phenyl Radical ◽  
Dissolved Gas ◽  
Decomposition Products ◽  
Oxygenated Compounds ◽  
Phenyl Cation

Neat nitrobenzene was continuously irradiated at two ultrasonic frequencies: 40 and 200 kHz, under air and argon atmosphere, respectively. Samples taken at intervals of 1, 5, 10 and 24 h were analyzed by GC-MS and decomposition products were identified. Possible reaction mechanisms are discussed. Presence of air as dissolved gas leads to oxygenated compounds such as 1,4-benzoquinone, 2,4-dinitrophenol, m-dinitrobenzene while argon inhibits the decomposition of nitrobenzene, especially at sonication times under 5 h. Based on the nature of the compounds identified we advanced a mechanism, involving a divergent splitting of unstable radical cation of NB in air and argon respectively. Thus, under air, the phenyl cation formation is preferred leading to 1,4-benzoquinone nitro-biphenyls and dinitrobenzene, while under argon, the phenyl radical formation seems to be favored, leading to phenol and diphenyl ether. The oxygenated compounds detected under argon clearly are a consequence of the nitro group splitting.

Effect of Polyethylene Glycol in Nanocellulose/PLA Composites

2019 ◽  
Vol 821 ◽  
pp. 89-95
Author(s):  
Wanasorn Somphol ◽  
Thipjak Na Lampang ◽  
Paweena Prapainainar ◽  
Pongdhorn Sae-Oui ◽  
Surapich Loykulnant ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Lactic Acid ◽  
Polyethylene Glycol ◽  
Aspect Ratio ◽  
Mechanical Performance ◽  
Tensile Modulus ◽  
Poly Lactic Acid ◽  
Solvent Casting ◽  
Casting Method ◽  
Mediated Oxidation

Poly (lactic acid) or PLA was reinforced by nanocellulose and polyethylene glycol (PEG), which were introduced into PLA matrix from 0 to 3 wt.% to enhance compatibility and strength of the PLA. The nanocellulose was prepared by TEMPO-mediated oxidation from microcrystalline cellulose (MCC) powder and characterized by TEM, AFM, and XRD to reveal rod-like shaped nanocellulose with nanosized dimensions, high aspect ratio and high crystallinity. Films of nanocellulose/PEG/PLA nanocomposites were prepared by solvent casting method to evaluate the mechanical performance. It was found that the addition of PEG in nanocellulose-containing PLA films resulted in an increase in tensile modulus with only 1 wt% of PEG, where higher PEG concentrations negatively impacted the tensile strength. Furthermore, the tensile strength and modulus of nanocellulose/PEG/PLA nanocomposites were higher than the PLA/PEG composites due to the existence of nanocellulose chains. Visual traces of crazing were detailed to describe the deformation mechanism.

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