Can the three-coordinated MG site of MgO accommodate more than one CO molecule?

Article Abstract:

The IR spectra of CO adsorption at the MgO-h surface shows that the 2202 cm(super -1) band of the Co at the Mg3c sites gradually decreases upon increase of the pressure from 10(super -1) Torr. The results of energy and frequency calculations suggest that at about 10(super -1)Torr the adsorption of the second Co molecules at about 10(super -1) Torr the adsorption of the second CO molecules at the Mg3c sites occurs forming the new 2OC.Mg3c species.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Cobalt, Magnesium Compounds, Molecules, Magnesium trisilicate

---

Investigations of the structure of H2O clusters adsorbed on TiO2 surfaces by near-infrared absorption spectroscopy

Article Abstract:

The overtone and combination bands of the fundamental vibration modes attributed to the H2O molecules adsorbed on a TiO2 surface could be observed in the near-infrared (NIR) region. The results reveal that H2O molecules absorbed on a TiO2 surface aggregate to form clusters due to the high surface tension of H2O arising from the intermolecular hydrogen bonds.

Tin, Analysis, Water, Near infrared spectroscopy, Thermal properties, Adsorption

---

Ni and CO used as probes of the amorphous silica surface: IR and theoretical studies of dicarbonyl Ni(super II) complexes

Article Abstract:

Ni(super II) ion and the CO molecule are used as successive probes of the local structure and reactivity of the silica surface. CO acts not as a chemical reactant but as a molecular probe of the coordination vacancies of the grafted Ni(super II)(sub 3c) ion under conditions that keep the metal oxidation state constant.

Industrial sand, Silica & Silica Sand, Industrial Sand Mining, Silica, Oxidation-reduction reaction, Oxidation-reduction reactions, Nickel, Surface chemistry, Structure, Chemical properties, Silicon dioxide

Similar abstracts:

• Abstracts: Laplacian of the electronic charge density and heat of adsorption of O2 and CO molecules on 3d transition metals
• Abstracts: Theoretical studies of the coordination and stability of divalent cations in ZSM-5. Theoretical studies of metal ion selectivity. 3. A theoretical design of the most specific combinations of functional groups representing amino acid side chains for the selected metal ions [Co(super 2+), Ni(super 2+), Cu(super 2+), Zn(super 2+), Cd(super 2+), and Hg(super 2+)]
• Abstracts: Chemisorption of CO at Strongly Basic Sites of MgO Solid: A Theoretical Study. The [2+1] cycloadditions of dichlorocarbene, silylene, germylene, and oxycarbonylnitrene onto the sidewall of armchair (5,5) single-wall carbon nanotube
• Abstracts: On the factor in Gibbs equation for ionic surfactants. Coexistence of spheres and rods in micellar solution of dodecyldimethylamine oxide

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