17O nuclear quadrupole coupling constants of water bound to a metal ion: A gadolinium(III) case study
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Electronic states and solvation of Cu and Ag aqua ions are investigated by comparing the Cu2+ + e- -> Cu+ and Ag2+ + e- -> Ag+ redox reactions using d. functional-based computational methods. The coordination no. of aq. Cu2+ is found to fluctuate between 5 ...
We determined the structure of the hydrated Cu(II) complex by both neutron diffraction and first-principles molecular dynamics, In contrast with the generally accepted picture, which assumes an octahedrally solvated Cu(II) ion, our experimental and theoret ...
American Association for the Advancement of Science2001
THE exchange of metal ions between an oxide mineral surface and water occurs in a wide range of processes, including corrosion(1), the breakdown, of inhaled dusts(2,3), soil formation(4) and the cycling of toxic substances in the environment(5). In studies ...
Ti/Au/PbO2 electrodes were prepd. and their stability in H2SO4 (2-12 mol/dm3) was studied. Incorporation of a Au layer between the Ti substrate and the PbO2 decreases the resistance of the electrode. The corrosion of an anodically polarized electrode incre ...
Recent neutron-diffraction studies on dilute solutions have shown that a change in coordination numbers from nine to eight water molecules in the first hydration sphere occurs when going from the light to the heavy lanthanide (III) ions. To acquire a deepe ...
Salt effects exerted on the cycloetherification of linear diarylheptanoid 3-OH-4-MeOC6H3(CH2)2COCMe2CO(CH2)2C6H3-3-F-4-NO2 were investigated. Both salting-in and salting-out alkali salts were found to inhibit the macrocyclization. Ion-pairing exchange was ...
WE present the first comparative study of the uptake of metal ions by neurones, performed for Zn, Cr, Co, Mo, Al, Ni, Mn and Cd. The study reveals substantial differences in the uptake of different metals, under similar exposure procedures. In particular, ...
The binding of metal ions to self-assembled nitrilotriacetic acid (NTA)-modified thioalkane monolayers was monitored by impedance spectroscopy via a capacitance change of the blocking gold electrode. Binding to a fluorescent NTA-derivative and the native N ...
