Mononuclear nonheme iron(iv)–oxo and manganese(iv)–oxo complexes in oxidation reactions: experimental results prove theoretical prediction

2015 ◽  
Vol 51 (66) ◽  
pp. 13094-13097 ◽  
Author(s):  
Junying Chen ◽  
Kyung-Bin Cho ◽  
Yong-Min Lee ◽  
Yoon Hye Kwon ◽  
Wonwoo Nam
Keyword(s):  
Theoretical Prediction ◽  
Nonheme Iron ◽  
Experimental Results ◽  
Oxidation Reactions ◽  
Oxo Complexes

The HAT and OAT reactivities of FeIVO and MnIVO species with the N4Py ligand are compared both theoretically and experimentally and the reactivity of FeIVO is found to be higher.

Tuning Reactivity and Mechanism in Oxidation Reactions by Mononuclear Nonheme Iron(IV)-Oxo Complexes

2014 ◽  
Vol 47 (4) ◽  
pp. 1146-1154 ◽  
Author(s):  
Wonwoo Nam ◽  
Yong-Min Lee ◽  
Shunichi Fukuzumi
Keyword(s):  
Nonheme Iron ◽  
Oxidation Reactions ◽  
Oxo Complexes

pH Changes That Induce an Axial Ligand Effect on Nonheme Iron(IV) Oxo Complexes with an Appended Aminopropyl Functionality

2021 ◽  
Author(s):  
Reza Latifi ◽  
Taryn D. Palluccio ◽  
Wanhua Ye ◽  
Jennifer L. Minnick ◽  
Kwame S. Glinton ◽  
...  
Keyword(s):  
Axial Ligand ◽  
Nonheme Iron ◽  
Ligand Effect ◽  
Ph Changes ◽  
Oxo Complexes

Surface Oxidation Behaviour of Cubic BN Powders

2014 ◽  
Vol 602-603 ◽  
pp. 544-547
Author(s):  
Xin Yan Yue ◽  
Yue Zhang ◽  
Jian Jun Wang ◽  
Wei Wang ◽  
Hong Qiang Ru
Keyword(s):  
Heat Treatment ◽  
Surface Oxidation ◽  
Mass Gain ◽  
Oxidation Behaviour ◽  
Experimental Results ◽  
Oxidation Temperature ◽  
Oxidation Reactions ◽  
Oxidation Treatment ◽  
Treatment Processes

In order to improve the sinterability of the cBN, surface oxidation treatment was conducted to form a B2O3 film on the surface of the cBN powders. The cBN powders (d50 = 7.5 μm) were used as original powders. The heat treatment processes were 500, 800, 900, 950, 980 and 1000 °C holding for 30 minutes, respectively. The oxidation reactions which probably happened were calculated based on the thermodynamics. The experimental results showed that the oxidation starting temperature of cBN powders was higher than 800 °C. The higher the oxidation temperature, the greater the mass gain of the cBN powders.

scholarly journals Change of Selectivity in C–H Functionalization Promoted by Nonheme Iron(IV)-oxo Complexes by the Effect of the N-hydroxyphthalimide HAT Mediator

ACS Omega ◽  
2021 ◽  
Author(s):  
Marika Di Berto Mancini ◽  
Andrea Del Gelsomino ◽  
Stefano Di Stefano ◽  
Federico Frateloreto ◽  
Andrea Lapi ◽  
...  
Keyword(s):  
Nonheme Iron ◽  
Oxo Complexes

scholarly journals A Kinetic Study on the Efficient Formation of High-Valent Mn(TPPS)-oxo Complexes by Various Oxidants

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 610
Author(s):  
Magdalena Procner ◽  
Łukasz Orzel ◽  
Grażyna Stochel ◽  
Rudi van Eldik
Keyword(s):  
Transition Metal Complexes ◽  
Peracetic Acid ◽  
Research Work ◽  
Sodium Perborate ◽  
Oxidation Reactions ◽  
Oxo Complexes ◽  
Significant Research ◽  
Order Of Magnitude ◽  
High Valent ◽  
Harmful Effects

New, more efficient methods of wastewater treatment, which will limit the harmful effects of textile dyes on the natural environment, are still being sought. Significant research work suggests that catalysts based on transition metal complexes can be used in efficient and environmentally friendly processes. In this context, a number of compounds containing manganese have been investigated. A suitable catalyst should have the capacity to activate a selected oxidant or group of oxidants, in order to be used in industrial oxidation reactions. In the present study we investigated the ability of MnIII(TPPS), where TPPS = 5,10,15,20-tetrakis(4-sulphonatophenyl)-21H,23H-porphyrine, to activate five different oxidants, namely hydrogen peroxide, peracetic acid, sodium hypochlorite, potassium peroxomonosulfate and sodium perborate, via the formation of high valent Mn(TPPS)-oxo complexes. Kinetic and spectroscopic data showed that the oxidation process is highly pH dependent and is strongly accelerated by the presence of carbonate in the reaction mixture for three of the five oxidizing agents. The highest efficiency for the oxidation of MnIII(TPPS) to high-valent Mn(TPPS)-oxo complexes, was found for peracetic acid at pH ≈ 11 in 0.5 M carbonate solution, which is at least an order of magnitude higher than the rate constants found for the other tested oxidants under similar conditions.

Polymorphic transformation towards formation of nanotubes by self-assembly of an achiral molecule

Nanoscale ◽  
2015 ◽  
Vol 7 (42) ◽  
pp. 17848-17854 ◽  
Author(s):  
Shuai Wang ◽  
Yajun Zhang ◽  
Yijun Xia ◽  
Bo Song
Keyword(s):  
Theoretical Prediction ◽  
Self Assembly ◽  
Polymorphic Transformation ◽  
Experimental Results

Polymorphic transformation to nanotubes: match of experimental results and theoretical prediction.

The mmW Band Tamm States in One-Dimensional Magnetophotonic Crystals

2009 ◽  
Vol 152-153 ◽  
pp. 394-396 ◽  
Author(s):  
Sergey I. Tarapov ◽  
M. Khodzitskiy ◽  
S.V. Chernovtsev ◽  
D. Belosorov ◽  
A.M. Merzlikin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Theoretical Prediction ◽  
Experimental Results ◽  
One Dimensional ◽  
Magnetophotonic Crystals ◽  
Good Agreement

The mmW band photonic Tamm states in 1D magnetophotonic crystals are studied. It is shown the possibility to manipulate the eigenfrequencies of such states by an external magnetic field. Our experimental results are in a good agreement with theoretical prediction.

ChemInform Abstract: Oxidation Reactions with Bioinspired Mononuclear Non-Heme Metal-Oxo Complexes

ChemInform ◽  
2016 ◽  
Vol 47 (35) ◽  
Author(s):  
Xenia Engelmann ◽  
Ines Monte-Perez ◽  
Kallol Ray
Keyword(s):  
Oxidation Reactions ◽  
Oxo Complexes
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