Solute Atmosphere Dragging of Edge Dislocation in Concentrated Solid Solutions

Structure of Concentrated HCl Solutions

A pentagonal ring is suggested as the basic structural unit of HCl(H2O)6 and (HCl)2(H2O)6 in solution. Modeled after the X-ray structure of a caged H13O6 compound, it contains bridged H5O2 and Clions, each with a coordination number around four. In the most concentrated HCl solutions, one of the ligands solvating Clis HCl, giving rise to a bichloride moiety. The proposed structure explains qual...

Electronic energy migration in solid versus liquid host matrices for concentrated perylenediimide dye solutions.

In this paper, we continue our evaluation of Forster-type theories of exciton diffusion in disordered environments. The perylenediimide dye Lumogen Red is used as a donor molecule in two different liquids, CHCl(3) and dimethylformamide, and the energy transfer to the acceptor molecule Rhodamine 700 is measured using time-resolved fluorescence decays. The exciton motion is measured over Lumogen ...

Multicomponent Concentrated Aqueous Electrolyte Solutions

Dislocation–solute cluster interaction in Al–Mg binary alloys

The close-range interaction of dislocations and solute clusters in the Al–Mg binary system is studied by means of atomistic simulations. We evaluate the binding energy per unit length of dislocations to the thermodynamically stable solute atmospheres that form around their cores, at various temperatures and average solid solution concentrations. A measure of the cluster size that renders linear...

THE KINETICS OF HYDROLYSIS OF TRANS-DIFLUOROTETRAMMINECHROMIUM (111) ION IN VARIOUS CONCENTRATED ACID SOLUTIONS

The rate of hydrolysis of trans -[Cr(NH ) F ] was obtained as a function of acid concentsation in perchloric, sulfuric and nitric acid at 3Q°C. The results have been analyzed by the treatment of Bunnett and Olsen. Values of the parameter ?in Olsen equation are consistent with the participation of water as a proton-wansfer agent in the rate-determining step. The Arrhenius plot for perchlori...