Aquation

About: Aquation is a research topic. Over the lifetime, 1443 publications have been published within this topic receiving 17507 citations.

Preparation, properties, and reactions of some sulphatobis(ethylenediamine)cobalt(III) complexes

Abstract: Previously reported sulphatobis(ethylenediamine)cobalt(III) complexes have been shown to be complex mixtures. A number of pure, nonionic compounds have been isolated from these, either in the solid state or in solution, and have been characterised by visible and i.r. spectroscopy. The kinetics of their solvolytic aquation and base hydrolysis have been investigated, and the labilising influence of the sulphato-ligand is briefly discussed. The behaviour of sulphate as a replaced ligand is compared with that of chloride.

The Aquation of Po(IV): A Quantum Chemical Study.

Abstract: The aim of this work is to present theoretical results of the hydration of the Po(IV) in solution. Particular attention is paid to the level of calculation needed to properly describe the system under study: Po(IV) coordination number in the first hydration shell and the nature of the polonium‐water bonding. The hydration number of the Po(IV) is found to be in solution between 8 and 9 and the solvation free energy around −1450 kcal/mol. The Po‐H2O bonding is dominated by the strong electrostatic contribution although the peculiar geometry adopted by the different hydrates is due to covalent contributions. This involves the empty 6p orbital of the polonium ion and one lone pair on the oxygen atom of the water molecule. No role of the 6s orbital of the polonium ion is detected.