Research of Influence of the Nature of Metal on the Mechanism of Synthesis of Polyvinylpyrrolidone Metal Copolymers

The influence of the metal fine filler nature on the polymerization mechanism of polyvinylpyrrolidone-methacrylate compositions in the presence and without iron(II) sulphate has been determined. The catalysis mechanism has been confirmed via complexation with charge transfer between the initial composition components. The metal activating effect increases with the increase of its negative electrochemical potential.

Cyclohexane Oxidation in the Presence of Variable Valency Metals Che

Influence of individual catalysts – oligomeric chelate complexes of cobalt and copper in the cyclohexane oxidation process was investigated. The method of of metal-complex catalysts synthesis was shown. The influence of complex oligomers and their ligands on the parameters of the cyclohexane oxidation process was analyzed.

The Selective Ethylbenzene Oxidation by Dioxygen into -Phenyl Ethyl Hydroperoxide, Catalyzed with Triple Catalytic System {NiII(acac)2+NaSt(LiSt)+PhOH}. Formation of Nanostructures {NiII(acac)2•NaSt•(PhOH)}n with Assistance of Intermolecular H-Bonds

The role of intra- and intermolecular H-bonds in mechanisms of catalysis with triple heterobinuclear hetero ligand complexes NiII(acac)2∙NaSt(LiSt)∙PhOH, including nickel and redox-inactive metal Na(Li), in the ethylbenzene oxidation by dioxygen into -phenyl ethyl hydroperoxide is discussed. The AFM method has been used for research of the stable supramolecular nanostructures formation possibility on the basis of triple complex NiII(acac)2∙NaSt∙PhOH, with the assistance of intermolecular H-bonds.

Some Supramolecular Nanostructures Based on Catalytic Active Nickel and Iron Heteroligand Complexes. Functional Models of Ni(Fe) Dioxygenases

The possibility of the supramolecular nano structures formation on the basis of iron and nickel heteroligand complexes: Fex(acac)y18C6m(H2O)n, and Fex(acac)y(CTAB)p(H2O)q, or Ni2(OAc)3(acac)L2•2H2O (L2 = MP)  with the assistance of H-bonding, is researched using the AFM method. Formation of different supramolecular nanostructures on the basis of nickel and iron heteroligand complexes as models for Ni(Fe)ARD Dioxygenases may be used for understanding of different actions of these enzymes.

Influence of Organic Additives on Catalysts of Liquid-Phase Cyclohexane Oxidation

Research of the influence of oxygen and nitrogen containing organic additives to the catalyst on the main parameters of the process of cyclohexane oxidation have been conducted. A wide range of nitrogen and oxygen containing compounds and compounds based on polyglycols with varying molecular weight have been used as additives. The obtained results have been analyzed in view of the structural features of the studied additives and the probability of their interaction with the catalyst and intermediate products of oxidation with subsequent formation of intermediate complexes or associates.

Catalytic Activity of Binary and Triple Systems Based on Redox Inactive Metal Compound, LiSt and Additives of Monodentate Ligands-Modifiers: DMF, HMPA and PhOH, in Selective Ethylbenzene Oxidation with Dioxygen

Mechanism of catalysis with binary and triple catalytic systems based on redox inactive metal (lithium) compound {LiSt+L2} and {LiSt+L2+PhOH} (L2=DMF or HMPA), in the selective ethylbenzene oxidation by dioxygen into -phenylethyl hydroperoxide is researched. The results are compared with catalysis by nickel-lithium triple system {NiII(acac)2+LiSt+PhOH} in selective ethylbenzene oxidation to PEH. The role of H-bonding in mechanism of catalysis is discussed.