Synthesis, characterization and reactivity studies of electrophilic ruthenium(ii) complexes: a study of H2activation and labilization

2014 ◽  
Vol 43 (35) ◽  
pp. 13410-13423 ◽  
Author(s):  
K. S. Naidu ◽  
Yogesh P. Patil ◽  
Munirathinam Nethaji ◽  
Balaji R. Jagirdar
Keyword(s):  
Molecular Hydrogen ◽  
Ruthenium Complexes

Synthesis of some new highly electrophilic ruthenium complexes bearing the 1,2-bis(dipentafluorophenyl phosphino)ethane ligand and their reactivity studies towards activation and labilization of molecular hydrogen are reported.

Reactions of molecular hydrogen ruthenium complexes [RuH(.eta.2-H2)P4]BF4 with alkynes: preparation and crystal structure of the [Ru{.eta.3-(p-tolyl)C3CH(p-tolyl)}{PhP(OEt)2}4]BPh4 derivative

1991 ◽  
Vol 10 (8) ◽  
pp. 2876-2883 ◽  
Author(s):  
Gabriele. Albertin ◽  
Paola. Amendola ◽  
Stefano. Antoniutti ◽  
Sandra. Ianelli ◽  
Giancarlo. Pelizzi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Molecular Hydrogen ◽  
Ruthenium Complexes

scholarly journals Ruthenium molecular complexes immobilized on graphene as active catalysts for the synthesis of carboxylic acids from alcohol dehydrogenation

2016 ◽  
Vol 6 (22) ◽  
pp. 8024-8035 ◽  
Author(s):  
David Ventura-Espinosa ◽  
Cristian Vicent ◽  
Miguel Baya ◽  
Jose A. Mata
Keyword(s):  
Carboxylic Acids ◽  
Molecular Hydrogen ◽  
Ruthenium Complexes ◽  
Molecular Complexes ◽  
Efficient Synthesis ◽  
Water As Solvent ◽  
Alcohol Dehydrogenation

Green efficient synthesis of carboxylic acids catalyzed by molecular ruthenium complexes supported on graphene using water as solvent and with the formation of molecular hydrogen as a by-product.

Interaction of H2O, O2 and H2 with Proton Conducting Oxides Based on Lanthanum Scandates

2019 ◽  
pp. 88-100
Author(s):  
A. S. Farlenkov ◽  
N. A. Zhuravlev ◽  
Т. A. Denisova ◽  
М. V. Ananyev
Keyword(s):  
Water Vapor ◽  
Partial Pressure ◽  
Gas Phase ◽  
Molecular Hydrogen ◽  
Proton Magnetic Resonance ◽  
Partial Pressure Of Oxygen ◽  
Proton Conducting ◽  
Conducting Oxides ◽  
Temperature Range ◽  
Apparent Level

The research uses the method of high-temperature thermogravimetric analysis to study the processes of interaction of the gas phase in the temperature range 300–950 °C in the partial pressure ranges of oxygen 8.1–50.7 kPa, water 6.1–24.3 kPa and hydrogen 4.1 kPa with La1–xSrxScO3–α oxides (x = 0; 0.04; 0.09). In the case of an increase in the partial pressure of water vapor at a constant partial pressure of oxygen (or hydrogen) in the gas phase, the apparent level of saturation of protons is shown to increase. An increase in the apparent level of saturation of protons of the sample also occurs with an increase in the partial pressure of oxygen at a constant partial pressure of water vapor in the gas phase. The paper discusses the causes of the observed processes. The research uses the hydrogen isotope exchange method with the equilibration of the isotope composition of the gas phase to study the incorporation of hydrogen into the structure of proton-conducting oxides based on strontium-doped lanthanum scandates. The concentrations of protons and deuterons were determined in the temperature range of 300–800 °C and a hydrogen pressure of 0.2 kPa for La0.91Sr0.09ScO3–α oxide. The paper discusses the role of oxygen vacancies in the process of incorporation of protons and deuterons from the atmosphere of molecular hydrogen into the structure of the proton conducting oxides La1–xSrxScO3–α (x = 0; 0.04; 0.09). The proton magnetic resonance method was used to study the local structure in the temperature range 23–110 °C at a rotation speed of 10 kHz (MAS) for La0.96Sr0.04ScO3–α oxide after thermogravimetric measurements in an atmosphere containing water vapor, and after exposures in molecular hydrogen atmosphere. The existence of proton defects incorporated into the volume of the investigated proton oxide from both the atmosphere containing water and the atmosphere containing molecular hydrogen is unambiguously shown. The paper considers the effect of the contributions of the volume and surface of La0.96Sr0.04ScO3–α oxide on the shape of the proton magnetic resonance spectra.

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