High-valent ruthenium and osmium oxo complexes for homogeneous and photochemical oxidations of inorganic and organic substrates

1988 ◽  
Author(s):  
Wing-wah, Vivian Yam
Keyword(s):  
Organic Substrates ◽  
Oxo Complexes ◽  
High Valent ◽  
Inorganic And Organic

scholarly journals Reactive Cobalt–Oxo Complexes of Tetrapyrrolic Macrocycles and N-based Ligand in Oxidative Transformation Reactions

Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 78 ◽  
Author(s):  
Atif Ali ◽  
Waseem Akram ◽  
Hai-Yang Liu
Keyword(s):  
Water Oxidation ◽  
Organic Substrates ◽  
Oxygen Atom Transfer ◽  
Oxidative Transformation ◽  
Oxo Complexes ◽  
Oxygen Atom Transfer Reactions ◽  
High Valent ◽  
Transient Intermediates ◽  
Transformation Processes ◽  
Natural Photosynthesis

High-valent cobalt–oxo complexes are reactive transient intermediates in a number of oxidative transformation processes e.g., water oxidation and oxygen atom transfer reactions. Studies of cobalt–oxo complexes are very important for understanding the mechanism of the oxygen evolution center in natural photosynthesis, and helpful to replicate enzyme catalysis in artificial systems. This review summarizes the development of identification of high-valent cobalt–oxo species of tetrapyrrolic macrocycles and N-based ligands in oxidation of organic substrates, water oxidation reaction and in the preparation of cobalt–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.

Epitaxial crystallization of polyesters on inorganic and organic substrates

1978 ◽  
Vol 16 (5) ◽  
pp. 895-906 ◽  
Author(s):  
S. E. Rickert ◽  
E. Baer ◽  
J. C. Wittmann ◽  
A. J. Kovacs
Keyword(s):  
Organic Substrates ◽  
Epitaxial Crystallization ◽  
Inorganic And Organic

Monooxygenase models: Structure and reactivity of a series of high valent oxo complexes of Cr, Mn, and Ru.

1993 ◽  
Vol 51 (1-2) ◽  
pp. 293
Author(s):  
Nathanael L.P. Fackler ◽  
F.M. MacDonnell ◽  
Thomas V. O'Halloran
Keyword(s):  
Oxo Complexes ◽  
High Valent

Does a multiply bonded oxo ligand directly participate in B–H bond activation by a high-valent di-oxo-molybdenum(vi) complex? A density functional theory study

2015 ◽  
Vol 5 (6) ◽  
pp. 3259-3269 ◽  
Author(s):  
Liangfang Huang ◽  
Jiandi Wang ◽  
Xiaoqin Wei ◽  
Haiyan Wei
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Bond Activation ◽  
Organic Substrates ◽  
Density Functional Theory Study ◽  
Molybdenum Complex ◽  
Functional Theory ◽  
Multiply Bonded ◽  
High Valent ◽  
Oxo Ligand

The multiply bonded oxo ligand does not participate in the activation of the B–H bond with organic substrates of amides, amines, and nitriles by the high-valent oxo-molybdenum complex MoO2Cl2.

Influence of Ligand Architecture on Oxidation Reactions by High-Valent Nonheme Manganese Oxo Complexes Using Water as a Source of Oxygen

2014 ◽  
Vol 54 (7) ◽  
pp. 2095-2099 ◽  
Author(s):  
Prasenjit Barman ◽  
Anil Kumar Vardhaman ◽  
Bodo Martin ◽  
Svenja J. Wörner ◽  
Chivukula V. Sastri ◽  
...  
Keyword(s):  
Oxidation Reactions ◽  
Oxo Complexes ◽  
High Valent

Mechanistic Insight into Alcohol Oxidation by High-Valent Iron-Oxo Complexes of Heme and Nonheme Ligands

2005 ◽  
Vol 44 (27) ◽  
pp. 4235-4239 ◽  
Author(s):  
Na Young Oh ◽  
Yumi Suh ◽  
Mi Joo Park ◽  
Mi Sook Seo ◽  
Jinheung Kim ◽  
...  
Keyword(s):  
Alcohol Oxidation ◽  
Oxo Complexes ◽  
Mechanistic Insight ◽  
High Valent ◽  
Insight Into
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