EPR as a tool to investigate the transition metal chemistry on oxide surfaces

Article Abstract:

The usefulness of the combined application of the theories of coordination chemistry and electron paramagnetic resonance (EPR) spectroscopy in the study of transition metal complexes at oxide surfaces and the phenomena occurring at the gas-solid interface are discussed. EPR can provide a means to distinguish and identify features originating from various surface centers and to follow their transformations when they interact with gas-phase molecules. Coordination chemistry allows the study of reactions occurring on oxide surfaces in terms of exchange, elimination or coordination of ligands.

Transition metals, Pressure, Pressure (Physics), Electron paramagnetic resonance spectroscopy, Temperature, Chemical tests and reagents, Reagents

---

Mechanism of Rubisco: the carbamate as general base

Article Abstract:

Carbamate contributes to the mechanism of the enzyme ribulose 1,5-biphosphate carboxylase (Rubisco) which has significant role in agriculture and biomass production. Carbamate is formed through the reaction of carbon dioxide with an uncharged amine. The features in the formation of carbamates reinforce the Rubisco mechanism by functioning as bridging ligand between two divalent metal ions. In the process, an aci-carbamate, which is coordinated monodentately to a metal ion, retains a negative charge on the other noncoordinated oxygen atom that acts as the general base.

Carbamates, Ribulosebiphosphate carboxylase

---

The binary rare earth oxides

Article Abstract:

Binary rare earth oxides support refractory features. They are thermally very stable and react with oxygen to form oxides. These oxides have been characterized by determining physical and chemical properties with a various techniques, including electrical, magnetic and optical. Technological advances have made it possible to obtain binary rare earth oxides for higher reliability studies and for determining preparation techniques for ultrafine particles.

Rare earth metals

Similar abstracts:

• Abstracts: Metal-assisted cycloaddition reactions in organotransition metal chemistry. The chemistry of highly strained oligospirocyclopropane systems
• Abstracts: Luminescent and redox-active polynuclear transition metal complexes. Solvent effects on the electronic spectra of transition metal complexes
• Abstracts: New developments in the coordination chemistry of inorganic selenide and telluride ligands. Cycloheptatriene and -enyl complexes of the early transition metals
• Abstracts: Scanning tunneling microscopy manipulation of complex organic molecules on solid surfaces. Biomimetic nanoscale reactors and networks
• Abstracts: Metal to insulator transitions in clusters. Formation of novel rare-gas molecules in low-temperature matrices

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.