Question

Aluminium ion in solution is an example for

Answer 1

Explanation:

Thomas Grey, ... Jose Soler, in Studies in Surface Science and Catalysis, 2000

3.2 Configurations with both aluminium substitutions on the same ring

With two aluminium ions in the same ring the most strongly bound site for these two configurations was site A′, which lies above the face of this ring. In fact their relative energies are highly correlated with the distance from the aluminium ions; graphs of energy against distance to aluminium for 1_4 and 1_5 give correlation coefficients to linear fits of 0.89 and 0.91 respectively. For configurations with the aluminium ions on the same ring, site N is not an observed energetic minimum. For 1_4, the B-sites energies were spread over the range 1435 kJmol− 1 to 1522kJmol− 1. Although the most strongly bound B site is still around 109 kJmol− 1 less strongly held than the A’ sites, the B site energies bracket the energy of the other A site. Configuration 1_5 is a less symmetric configuration than 1_4 and shows a greater spread of B-site energies but this is mainly due to the more strongly bound site B1’ which lies above the two aluminium atoms.